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1981-02-13

1983-06-07

Holtje, Nelson C.

Photography and optical equipment

Projector or viewer

With provision for transparency magazine

D1603

Patent

active

D02692740

REFERENCES:
patent: D222298 (1971-10-01), Ishii
patent: D225777 (1973-01-01), Kakii
patent: D228956 (1973-10-01), Sakuma
patent: D231127 (1974-04-01), Case
patent: D236915 (1975-09-01), Hideshima
patent: D247296 (1978-02-01), Nakade
patent: D248957 (1978-08-01), Kitai et al.
patent: D250030 (1978-10-01), Mikami
patent: D251912 (1979-05-01), Nakade
patent: D257984 (1981-01-01), Kurozumi et al.
patent: D260019 (1981-07-01), Onoue
patent: 3809476 (1974-05-01), Fader
patent: 3813157 (1974-05-01), Fantozzi
American Bar Association Journal, vol. 67, Jan. 1981, p. 37.

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