Drawing attachment for a microscope

Details Drawing attachment for a microscope Drawing attachment for a microscope

1977-03-02

1978-11-28

Ansher, Bernard

Photography and optical equipment

Projector or viewer

With provision for transparency magazine

353 39, D16 14, D1606

Patent

active

D02504120

REFERENCES:
patent: D197419 (1964-01-01), Preble, Jr.
patent: 2097752 (1937-11-01), Becker
patent: 2133321 (1938-10-01), Ehrlich
patent: 2185926 (1940-01-01), Senecal
patent: 3205770 (1965-09-01), Kock et al.
patent: 3572884 (1971-03-01), Chirayath

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