Photography and optical equipment – Ophthalmic article
Patent
1991-04-11
1992-10-27
Ansher, Bernard
Photography and optical equipment
Ophthalmic article
Patent
active
D03305716
REFERENCES:
patent: D113013 (1939-01-01), Parfrey
patent: 2166110 (1939-07-01), Baldanza
patent: 2177610 (1939-10-01), Ehrlich
patent: 2281129 (1942-04-01), Wolff
patent: 2307419 (1943-01-01), McNeill
patent: 2504524 (1950-04-01), Hayward
patent: 3155982 (1964-11-01), Baratelli
patent: 3678929 (1972-07-01), Buscher
patent: 4976530 (1990-12-01), Mackay
Accessories Oct. 1988 p. 19.
Gaiser Hans
Grimm Wolfgang
Gutbrod Heinz
Paysan Heinz-Wilhelm
Schurle Hermann
Ansher Bernard
Barkai R.
Carl-Zeiss-Stiftung Heidenheim/Brenz
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