Microfiche reader control means
US4086469A · kind A · utility
4Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1976 |
| Grant date | Apr 25, 1978 |
| Priority date | — |
| Expiry date | Jul 19, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/116
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A microfiche reader control means which permits direct keying of the number of a required microfilm frame. A keyed number is converted to values indicative of required displacement of a microfiche from an index position in order to bring the frame having the keyed number to a position for projection and viewing, and these values are supplied to drive means for moving the microfiche.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.