Geometrical Instruments Patents (Class 33)
- Aerial photo (Class 33/1A)
- Printed sheet (Class 33/1B)
- Curve and chart analysis (Class 33/1C)
- Indexing and verniers (Class 33/1D)
- Dip and strike (Class 33/1E)
- Article subdividing (Class 33/1F)
- Layout (Class 33/1G)
- Earth (Class 33/1H)
- Copy aids and perspective drawing (Class 33/1K)
- X-Y motion (Class 33/1M)
- Angular measurement (Class 33/1N)
- Optical readout (Class 33/1L)
- Sonic wave (Class 33/1P)
- Railroad (Class 33/1Q)
- Statistical measurements (Class 33/1S)
- Theodolite-optical readout (Class 33/1T)
- Volume measurement (Class 33/1V)
- Tables-layout (Class 33/1AA)
- Inspection (Class 33/1BB)
- Remote point locating (Class 33/1CC)
- Light direction (Class 33/1DD)
- Seismic (Class 33/1HH)
- Line engaging (Class 33/1LE)
- Multipolar (Class 33/1MP)
- Radius and spiral (Class 33/1SP)
- Angular position transducer (Class 33/1PT)
- Angle polysection (Class 33/1AP)
- Simulating calculators (Class 33/1SB)
- Character forming (Class 33/1CF)
- Writing (Class 33/18.2)
- Perspective drawing (Class 33/18.3)
- Graduating (Class 33/19.1)
- Sight-line controlled (Class 33/20.1)
- Curved surface (Class 33/21.1)
- Pantographic (Class 33/23.01)
- Compound curved and straight-line (Class 33/26)
- Curved line (Class 33/27.01)
- Straight-line (Class 33/32.1)
- Parallel line (Class 33/41.1)
- Process (Class 33/228)
- Aerial bomb sight (Class 33/229)
- Marine or aircraft ground speed indicator (Class 33/232)
- Body related (Class 33/262)
- Structurally installed (Class 33/263)
- With telemetric means (Class 33/267)
- Celestial (Class 33/268)
- With magnetic compass (Class 33/272)
- With straight edge instrument or chart (Class 33/274)
- Combined (Class 33/275R)
- Multisight line (Class 33/276)
- Vertical and horizontal angle measurer (Class 33/281)
- Vertical angle (Class 33/282)
- Horizontal angle measurer (Class 33/285)
- Alignment device (Class 33/286)
- Level (i.e., surveyor's type) (Class 33/290)
- Rod or target (Class 33/293)
- Reticle (Class 33/297)
- Instrument support (Class 33/299)
- Process (Class 33/301)
- Borehole direction or inclination (Class 33/304)
- Thermally sensitive (Class 33/315)
- Gyromagnetic compass (Class 33/316)
- Gyroscopically controlled or stabilized (Class 33/318)
- With recorder (Class 33/331)
- With marker (Class 33/332)
- Structurally installed including relation to feature thereof (Class 33/333)
- Vehicle running gear, or headlight, inclination (Class 33/335)
- Railway rail spacing and inclination (Class 33/338)
- With cord-type straight-line guide or holder therefor (Class 33/339)
- With measurement in plural directions or of shape (Class 33/340)
- With independent linear measurement (Class 33/342)
- With angle or shape determination (Class 33/343)
- With damper or governor for sensor (Class 33/344)
- Attaching means (i.e., adhesive, magnetic or vacuum viewing aid) (Class 33/347)
- With viewing aid (i.e., illuminator or illumination director) (Class 33/348)
- With preselected direction indicator (Class 33/349)
- With protector or shock absorber (Class 33/350)
- Diverse directional indicator (Class 33/351)
- Combined (Class 33/354)
- Magnetic field responsive (Class 33/355R)
- Level or plumb, terrestrial gravitation responsive (Class 33/365)
- Wall guide and plumb (e.g., building construction) (Class 33/404)
- Clapboard marking (Class 33/411)
- Shaft aligning (Class 33/412)
- Cord type (Class 33/413)
- Multiplane angularly adjustable (Class 33/415)
- Square and pivoted straightedge (Class 33/418)
- Square and sliding nonpivotal straightedge(s) (Class 33/427)
- Square and fixed straightedge (Class 33/429)
- Base attached (Class 33/430)
- With means for moving straightedge over a surface (Class 33/448)
- Combined with level (Class 33/451)
- Plural straightedges, relatively moveable (Class 33/452)
- Plural straightedges nonadjustably fixed at right angles (e.g., T-square, triangles, squares) (Class 33/474)
- Plural nonadjustable straightedges forming nonright angles (Class 33/482)
- Rules (Class 33/483)
- Pivot joints (Class 33/495)
- Process (Class 33/701)
- Error compensation (e.g., temperature) (Class 33/702)
- Environmental isolation (Class 33/703)
- Scale reading position sensor (e.g., grid counting) (Class 33/706)
- Convertable to another type measuring means (Class 33/709)
- Machine parts (Class 33/710)
- Article support integral with measuring means (Class 33/712)
- Sounding type (Class 33/713)
- Of flexible material (Class 33/732)
- By flexible tape (Class 33/755)
- Of length by rolling contact (Class 33/772)
- Opposed contacts (Class 33/783)
- Single contact with a work engaging support (Class 33/832)
- Leather grading or size (Class 33/501.01)
- Continuous gauging (Class 33/501.02)
- Comparator (Class 33/501.05)
- Tooth testing (e.g., gear, rack) (Class 33/501.7)
- Axle (Class 33/193)
- Door and window (Class 33/194)
- Hoof (Class 33/195)
- Millstone (Class 33/196)
- Mortise (Class 33/197)
- Screw thread (Class 33/199R)
- Spectacle (Class 33/200)
- Tool (Class 33/201)
- Wheel (Class 33/203)
- With calibration device or gauge for nuclear reactor element (Class 33/502)
- Coordinate movable probe or machine (Class 33/503)
- With computer responsive to contact probe (Class 33/504)
- Having program control or an analogue to digital device (Class 33/505)
- Target, weapon, or weapon projectile (Class 33/506)
- Lens (Class 33/507)
- Golf stance, swing or club analysis (Class 33/508)
- Bowling ball (Class 33/509)
- Anatomical (Class 33/511)
- Point reproducer (Class 33/516)
- Bearing or bearing part (Class 33/517)
- Masonry construction (Class 33/518)
- Cam profile or keyway (Class 33/519)
- Center, point, distance between centers, or centerline location (Class 33/520)
- Earth profile or road grade or shrub or tree trim guide (Class 33/521)
- Container (Class 33/522)
- With conveying wheel support (Class 33/523)
- Pie, cake, cheese, pizza, or sandwich portion (Class 33/524)
- Flooring, floor or wall covering, or molding (Class 33/526)
- Wall panel outline marker for utility (Class 33/528)
- Pipe layout or fitting (Class 33/529)
- Pitchometer (Class 33/530)
- Taper (Class 33/531)
- Straightness, flatness, or alignment (Class 33/533)
- Angle (Class 33/534)
- Lock or key (Class 33/539)
- Postage stamp or mechanical coupling gauge (Class 33/541)
- Automotive (Class 33/600)
- Collocating (Class 33/613)
- Button or buttonhole (Class 33/662)
- Proportional line segmenter (Class 33/663)
- With point marker (Class 33/666)
- Special scale markings (Class 33/679.1)
- Internal (Class 33/542)
- Comparison with a standard (Class 33/545)
- Plural tests (Class 33/548)
- With support for gauged article (Class 33/549)
- Circular size (Class 33/555.1)
- Having a movable contact probe (Class 33/556)
- Pivoted probes (e.g., divider, caliper, etc.) (Class 33/558.01)
- Movable contact probe, per se (Class 33/559)
- Conformator or adjustable curve template (Class 33/561.1)
- Template (Class 33/562)
- Surface plate or gauge block (Class 33/567)
- Work support adjustment (Class 33/568)
- With scale (Class 33/571)
- Probe support (Class 33/572)
- Work support (Class 33/573)