Negative film handling method and apparatus
US4286869A · kind A · utility
7Cited by
10References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1979 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | Dec 20, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D15/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A negative film handling method and apparatus in which negative films to be printed are inserted into negative film carrier sheets and the film sheets are attached side-by-side on a conveyor flexible transparent belt. Negative film inserting and removing openings provided in the film sheets are aligned with one another perpendicular to the inserting and removing direction. The negative film inserting and removing openings are opened by bending an edge portion of the flexible transparent belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.