Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1979-08-08
1981-12-01
Caun, Peter M.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
358108, D1601
Patent
active
D02621177
REFERENCES:
patent: 3568583 (1971-03-01), Horberg, Jr.
patent: 3613538 (1971-10-01), Horberg, Jr.
patent: 3819856 (1974-06-01), Pearl et al.
Caun Peter M.
Yashica Co., Ltd.
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