Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1980-07-14
1982-04-13
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02638495
REFERENCES:
patent: D231127 (1974-04-01), Case
patent: D240557 (1976-07-01), Stemmle
patent: D248957 (1978-08-01), Kitai
patent: D251912 (1979-05-01), Nakade
patent: D257984 (1981-01-01), Kurozumi
patent: 3813157 (1974-05-01), Fantozzi
patent: 3879123 (1975-04-01), Fisher
Gradco Dendoki, Inc.
Holtje Nelson C.
Lee, Jr. Newton H.
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