Microfilm reader

Details Microfilm reader Microfilm reader

1976-05-27

1978-01-17

Burke, Wallace R.

Photography and optical equipment

Projector or viewer

With provision for transparency magazine

D1603

Patent

active

D02469804

REFERENCES:
patent: D217739 (1970-06-01), Dalton et al.
patent: D223127 (1972-03-01), Andres et al.
patent: D233482 (1974-10-01), Andres et al.
patent: D239873 (1976-05-01), Matwey

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