Lens-fitted photographic film package
US4812863A · kind A · utility
19Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1988 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Feb 17, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2219/045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens-fitted photographic film package having a light-tight film case in which a taking lens, an exposure member and a roll film, with their associated elements, all of which are previously encased therein, is provided with a direct-vision viewfinder comprising a finder frame opening formed in a rearwardly recessed part of a front wall of the light-tight film case and a viewing opening formed in a rear wall of the light-tight film case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.