Time Condition Responsive (i.e., Alarm) Patents (Class 368/244)
- With electronic memory storage (Class 368/251)
- With contact on a circle (Class 368/252)
- With contact on a hand (Class 368/253)
- With cam control (Class 368/254)
- With piezoelectric means (Class 368/255)
- With optical signal (Class 368/256)
- With mechanical let-off (Class 368/257)
- With combined alarm and time motor (Class 368/259)