Apparatus for printing from microfilm
US4750021A · kind A · utility
7Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1987 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Apr 23, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/223
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus for printing an enlarged reproduction of an image frame stored on a microfilm includes means for measuring the pitch length between the image frame and an adjacent image frame and in response to such measurement produces a signal to inhibit the reproduction of portions of the adjacent image frame on the reproduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.