Photographic enlarger

Details Photographic enlarger Photographic enlarger

1976-12-28

1978-05-16

Burke, Wallace R.

Photography and optical equipment

Projector or viewer

With provision for transparency magazine

D1603

Patent

active

D02479087

REFERENCES:
patent: D196820 (1963-11-01), Durst
patent: D225902 (1973-01-01), Machacek
patent: D230200 (1974-01-01), Pramstraller
patent: D237545 (1975-11-01), Yamaguchi et al.
patent: D241577 (1976-09-01), Pramstraller

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