Magnifying device

Photography and optical equipment – Optical article not elsewhere specified – Lens or objective

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D02757672

REFERENCES:
patent: D127201 (1941-05-01), Gower
patent: D146272 (1947-01-01), Van Dyke
patent: D243329 (1977-02-01), Snarski
patent: 1588442 (1926-06-01), Bugbee
patent: 1975673 (1934-10-01), White
patent: 2151573 (1939-03-01), Stanley
patent: 2166988 (1939-07-01), Fosdick
patent: 2216965 (1940-10-01), Sukumlyn
patent: 2293597 (1942-08-01), Dietz
patent: 2527071 (1950-10-01), Pierce
patent: 2736097 (1956-02-01), Coleman, Jr.

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