Photography and optical equipment – Optical article not elsewhere specified – Lens or objective
Patent
1990-10-12
1993-04-13
Word, A. Hugo
Photography and optical equipment
Optical article not elsewhere specified
Lens or objective
D26 51, D26 65
Patent
active
D03347591
REFERENCES:
patent: D275037 (1984-08-01), Saferstein et al.
patent: D276940 (1984-12-01), Andersson
patent: D277320 (1985-01-01), Selden
patent: D284087 (1986-06-01), Haidinger
patent: D295287 (1988-04-01), Krogsrud et al.
patent: D309661 (1990-07-01), Shwisha
patent: D319889 (1991-09-01), Lu
patent: 4958913 (1990-09-01), Schaffer
B. A. Pargh, Summer/Spring 1985, p. 114, Polaris Magnifier Lamp.
B. A. Pargh, Summer/Spring 1985, p. 115, Illuminated Magnifier Lamp.
Burchell David P.
Meyer Carl X.
Schmid James A.
Vitt Louis O.
Coles Doris V.
Dazor Manufacturing Corp.
Word A. Hugo
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