Card retrieval device

Details Card retrieval device Card retrieval device

1978-04-10

1980-02-26

Nusbaum, Mark E.

Boots, shoes, and leggings

209610, 353 27A, G11B 1300

Patent

active

041908996

ABSTRACT:
A film card retrieval device for use in an automatic microfilm display apparatus is provided with a switch for sensing that a film card has been retrieved. In the event the device fails to retrieve a film card, the absence of a switch output signal causes the control apparatus to repeat the card retrieval routine.

REFERENCES:
patent: 3225925 (1965-12-01), Lasley et al.

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