Photographic reducing device

Details Photographic reducing device Photographic reducing device

1977-03-30

1978-10-24

Burke, Wallace R.

Photography and optical equipment

Projector or viewer

With provision for transparency magazine

D1601

Patent

active

D02500299

REFERENCES:
patent: D154544 (1949-07-01), Kaplowitz
patent: D159722 (1950-08-01), Eagle et al.
patent: D209991 (1968-01-01), Hoffman
patent: 3473873 (1969-10-01), Brackett

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