Photography and optical equipment – Projector or viewer – Integrated unit
Patent
1988-11-28
1992-02-18
Ansher, Bernard
Photography and optical equipment
Projector or viewer
Integrated unit
Patent
active
D03240614
REFERENCES:
patent: D204964 (1966-05-01), Wally, Jr.
patent: D220657 (1971-05-01), Christoffersen
patent: D224166 (1972-07-01), Simpson
patent: D247498 (1978-03-01), Persha
patent: D257535 (1980-11-01), Zellner et al.
patent: D263241 (1982-03-01), Ting
patent: D270347 (1983-08-01), Yomo et al.
patent: D305686 (1990-01-01), Fischer
patent: D309621 (1990-07-01), Chaikin
Popp Thomas
Segers Reinhard
Ansher Bernard
Arnold & Richter Cline Technik GmbH & Co.
Hyder Philip
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