Microfilm card duplication

Details Microfilm card duplication Microfilm card duplication

1976-01-26

1978-02-07

Braun, Fred L.

Photocopying

Contact printing

Machine

271 64, 355 78, 355 97, G03B 2730

Patent

active

040724204

ABSTRACT:
A microfilm card duplicating machine is arranged to feed master cards sequentially to a copying station. The master cards have images thereon for duplication by the machine. Copy cards are fed by the machine one by one to the copying station for producing a required number of copies. The copy cards and master cards are routed to a receiving station after copying while the master card is delayed such that it arrives at the receiving station only when its duplicate copy card(s) have been delivered thereto. The sequential delivery enables the formation of an interleaved stack of master and copy cards arranged with the copy card(s) being preceded in each case by the associated master card.

REFERENCES:
patent: 3248104 (1966-04-01), Grabowski et al.
patent: 3468606 (1969-09-01), Wolf et al.
patent: 3535039 (1970-10-01), Lakin et al.
patent: 3595561 (1971-07-01), Leblant
patent: 3672771 (1972-06-01), Lakin
patent: 3726590 (1973-04-01), Kistner et al.
patent: 3748039 (1973-07-01), Kuhn

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