Spring Projected Patents (Class 292/163)
- Cam and lever (Class 292/165)
- Lever and push or pull rod (Class 292/166)
- Link and lever (Class 292/167)
- Link and push or pull rod (Class 292/168)
- Sliding cam (Class 292/170)
- Cam (Class 292/169)
- Flexible (Class 292/171)
- Gear (Class 292/172)
- Lever (Class 292/173)
- Push or pull rod (Class 292/174)
- Rigid (Class 292/175)
- Screw (Class 292/176)