Microfiche marking system

Details Microfiche marking system Microfiche marking system

1976-02-19

1977-06-07

McNeill, G. E.

Card, picture, or sign exhibiting

Calendars

G09F 1310

Patent

active

040274110

ABSTRACT:
A system for alerting users of standard microfiche readers to updating of stored information. Printed "update" sheets permit a user to make full notation of complete information for ready reference by subsequent users. An illuminated viewer allows placement of a coded transparent grid card beneath a fiche on the viewer illuminated panel so that frame numbers are visible through the fiche. By use of permanent or washable translucent ink or opaque ink marker pens, coordinate squares of the fiche are appropriately marked to indicate updated information or deleted information.

REFERENCES:
patent: 1477131 (1923-12-01), Kulik
patent: 3075178 (1963-01-01), James
patent: 3332071 (1967-07-01), Goldman et al.
patent: 3343957 (1967-09-01), Townsley
patent: 3389242 (1968-06-01), Cross
patent: 3418119 (1968-12-01), Schwartz et al.
patent: 3485094 (1969-12-01), Simpson
patent: 3751152 (1973-08-01), Rinehart
patent: 3956054 (1956-05-01), Griswold et al.

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