Gauge Patents (Class 33/501)
- Mechanical engine timing by piston contact in engine cylinder (Class 33/601)
- Distributor point setting (Class 33/602)
- Connecting rod (Class 33/603)
- Piston, piston ring, or crankshaft (Class 33/605)
- Power train (Class 33/606)
- Fuel pump, injection nozzle or valve, or carburator (Class 33/607)
- Frame alignment (Class 33/608)
- Brake (Class 33/609)
- Engine valve, valve-stem, or tappet (Class 33/611)
- Torsion bar (Class 33/612)
- Printing member registration (Class 33/614)
- Sheet registering device (Class 33/623)
- Earth contacting or working (Class 33/624)
- Tool or surrogate (Class 33/626)
- Centering or point location (Class 33/644)
- Alignment (Class 33/645)
- Clapboard lapping (Class 33/646)
- Shingle lapping gauge (Class 33/648)
- Shoe, shoe part, or last (Class 33/650)
- Railway track or railway vehicle part (Class 33/651)
- Burner fuel emitting member with respect to electrode spacing (Class 33/652)
- Insignia with respect to garment, e.g., uniform (Class 33/653)
- Valve (Class 33/654)
- Machine parts (Class 33/655)
- For door or drawer hinge, pull or securing means (Class 33/667)
- For windup tape or tape casing, or marker attachment for tape (Class 33/668)
- Plural markers (Class 33/669)
- Having marker centering means (Class 33/670)
- Having workpiece-contacting device with marking to align with workpiece marking (Class 33/677)
- Angularly adjustable about an axis (Class 33/678)
- Marker located with respect to two different directions (Class 33/679)