Electronic flash unit

Details Electronic flash unit Electronic flash unit

1978-05-03

1980-07-01

Kemper, Catherine E.

Photography and optical equipment

Projector or viewer

With provision for transparency magazine

D1605

Patent

active

D02556898

REFERENCES:
patent: D232773 (1974-09-01), Kato
patent: D245613 (1977-08-01), Woodring et al.
patent: D248959 (1978-08-01), Kando
patent: D251567 (1979-04-01), Tsuruta
patent: 3969737 (1976-07-01), Kendrick

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