Copying machine

Details Copying machine Copying machine

1980-10-28

1983-03-22

Holtje, Nelson C.

Photography and optical equipment

Projector or viewer

With provision for transparency magazine

D1603

Patent

active

D02683458

REFERENCES:
patent: D200129 (1965-01-01), Plantholt
patent: D212262 (1968-09-01), Mallory
patent: D214699 (1969-07-01), Stessel
patent: D225279 (1972-11-01), Matwey
patent: D243238 (1977-02-01), Olson
patent: D258446 (1981-03-01), Beehler
patent: 3951540 (1976-04-01), Ogawa

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