Photography and optical equipment – Photographic accessory – Photometer – color – or exposure meter
Patent
1994-03-07
1995-04-25
Deshmukh, Prabhakar G.
Photography and optical equipment
Photographic accessory
Photometer, color, or exposure meter
Patent
active
D03576957
REFERENCES:
patent: D180014 (1957-04-01), Folden
patent: D183218 (1958-07-01), Kerr et al.
patent: D258447 (1981-03-01), Singer
patent: 2308469 (1943-01-01), McMaster
patent: 3891326 (1975-06-01), Volz
Aronovich Adir
Deshmukh Prabhakar G.
Gretag Aktiengesellschaft
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