Helmet shaped transparency viewer

Details Helmet shaped transparency viewer Helmet shaped transparency viewer

2006-04-18

2006-04-18

Aronovich, Adir (Department: 2915)

Photography and optical equipment

Projector or viewer

Integrated unit

Design Patent

active

D0519143

CLAIM:
An ornamental design for a helmet shaped transparency viewer, as shown and described.

REFERENCES:
patent: 2182334 (1939-12-01), Crespo
patent: D149554 (1948-05-01), Halbriter
patent: D401605 (1998-11-01), Shirley
patent: D421033 (2000-02-01), Shirley et al.
patent: D421034 (2000-02-01), Shirley et al.
patent: D421035 (2000-02-01), Shirley et al.
patent: D421762 (2000-03-01), Shirley et al.
patent: D424247 (2000-05-01), Deleon
patent: D446630 (2001-08-01), Lieberman
patent: D498248 (2004-11-01), Shirley

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