Photographic film package and method of making the same
US4831398A · kind A · utility
10Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1987 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Sep 8, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2219/045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens-fitted photographic film package having exposure structure includes a light-tight securely closed film casing provided with a taking lens, a film container containing an unexposed film, a removable light-tight film container having a spool to which a leading end of the film is attached, and a film-advancing member externally operable for rotating the film spool to wind the film around the spool in the light-tight film container one frame every exposure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.