Adjustable head electronic flash unit

Photography and optical equipment – Projector or viewer – With provision for transparency magazine

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D1605

Patent

active

D02504758

REFERENCES:
patent: D233257 (1974-10-01), Holtje
patent: D234370 (1975-02-01), Oberhei m
patent: D239204 (1976-03-01), Holtje et al.
patent: D241538 (1976-09-01), Swayze
patent: D243009 (1977-01-01), Schade
patent: 3969737 (1976-07-01), Kendrick

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