Microform viewer

Details Microform viewer Microform viewer

1976-02-17

1977-10-18

Evans, F. L.

350247, 350250, G02B 2704

Patent

active

040543730

ABSTRACT:
This invention is a portable hand operated viewer for micro-fiches and other material with writing too small to be read by the unaided eye. A translucent table has a clamp for the reading matter and that carries an adjustable binocular lens unit, with a head piece for correct location and for movement to scan the table. It is cheap and can be assembled by a child and is suitable for use in schools.

REFERENCES:
patent: 1568148 (1926-01-01), Fiske
patent: 1742640 (1930-01-01), Fiske
patent: 2127771 (1938-08-01), Baldauf
patent: 2604009 (1952-07-01), Walrath
patent: 3000123 (1961-09-01), Hicks

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