Cover for an overhead projector

Details Cover for an overhead projector Cover for an overhead projector

1990-10-18

1993-03-09

Ansher, Bernard

Photography and optical equipment

Projector or viewer

Element or attachment

Patent

active

D03338290

REFERENCES:
patent: D317616 (1991-06-01), Shiiba
patent: 3516733 (1970-06-01), Lucas
patent: 4120574 (1978-10-01), Hofmann et al.
patent: 4588271 (1986-05-01), Emura
patent: 4969733 (1990-11-01), Tewison
Gallant Inc. Overhead Projectors Catalog, p. 5 (Portable Projector Model 0-88).

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