Inverted projection head for an overhead projector

Details Inverted projection head for an overhead projector Inverted projection head for an overhead projector

2001-03-19

2003-04-15

Aronovich, Adir (Department: 2912)

Photography and optical equipment

Projector or viewer

Element or attachment

Design Patent

active

D0473255

CLAIM:
The ornamental design for an inverted projection head for an overhead projector, as shown and described.

REFERENCES:
patent: D197490 (1964-02-01), Hipp, Jr. et al.
patent: D198514 (1964-06-01), Field
patent: D244602 (1977-06-01), Mango et al.
patent: 5121984 (1992-06-01), Jones et al.
patent: 6170954 (2001-01-01), Kai et al.

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