Microfiche viewer with rotatable base

Details Microfiche viewer with rotatable base Microfiche viewer with rotatable base

1978-10-16

1980-08-12

Haroian, Harry N.

Optics: image projectors

Selective data retrieval

Plural picture rows on single microcard

353 77, 353119, 353 85, G03B 2308

Patent

active

042170397

ABSTRACT:
A microfiche viewer with a light projection path whereby different images on an individual piece of microfilm can be placed in the light projection path for viewing. The fiche is rectangular in configuration and is inserted into the viewer with the shorter side parallel to the front of the viewer. A rotatable base is attached to the bottom of the viewer which is designed to limit the angular rotation of the microfiche viewer.

REFERENCES:
patent: 1590896 (1926-06-01), Linstadt
patent: 2837965 (1958-06-01), Goldsmith
patent: 3120783 (1964-02-01), Swing et al.
patent: 3320854 (1967-05-01), Wally
patent: 3733121 (1973-05-01), Smitzer
patent: 3756709 (1973-09-01), Lettan
patent: 3826579 (1974-07-01), Schurgin
patent: 3973344 (1976-08-01), Frankel
patent: 3985430 (1976-10-01), Steiner

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