Prewind camera with film interlock
US5453808A · kind A · utility
18Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1994 |
| Grant date | Sep 26, 1995 |
| Priority date | — |
| Expiry date | Mar 15, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera is disclosed wherein the film is unwound from the film cartridge prior to use. The camera has a preventative mechanism for precluding an unaccustomed user from backing the film into the cartridge before the film has been substantially unwound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.