Stereoscopic viewer

Photography and optical equipment – Projector or viewer – Stereoscopic

Patent

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Patent

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D03581586

REFERENCES:
patent: 40654 (1863-11-01), Tresize
patent: D135378 (1943-03-01), Chadkin
patent: 139534 (1873-06-01), Bazin
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patent: 2187765 (1940-01-01), Walter
patent: 2225602 (1940-12-01), Ryker
patent: 2246604 (1941-06-01), Smith
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patent: 2621562 (1952-12-01), Stone
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patent: 2821884 (1958-02-01), Austin
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patent: 3298772 (1967-01-01), Milinowski
patent: 3391971 (1968-07-01), Kaufman
patent: 3418035 (1968-12-01), Rau
patent: 3462210 (1969-08-01), Monzali
patent: 4253732 (1981-03-01), Carver
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Hubbard Scientific Pat. D 207,580 Photocopy of device with wrong design patent number imprinted on it (Published prior to Nov. 1, 1993).
Steoreoptics Instructions (Published prior Nov. 1, 1993).
Copy of a page from an unknown antique magazine (Published prior Nov. 1, 1993).
Copy of device produced by Kenner Toy Company "See a Show" (Known prior Nov. 1, 1993).
Copy of a stereoscopic view "Stereoptics" (Published prior Nov. 1, 1993).
Copy of Lookman device (known prior Nov. 1, 1993).
Zeiss-Aerotopograph Catalog, 1940, cover page.
3DMARK brochure dated Jan. 1989.

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