Duplicating apparatus

Details Duplicating apparatus Duplicating apparatus

1978-07-31

1981-10-13

Kemper, Catherine E.

Photography and optical equipment

Projector or viewer

With provision for transparency magazine

D1603

Patent

active

D02612712

REFERENCES:
Office Products-Jul. 1976-back cover-Heyer Mimeograph.
Office Products-Sep. 1976-back cover-Heyer Mimeographs.

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