Doorknob

Details Doorknob Doorknob

2005-11-08

2005-11-08

Deshmukh, Prabhakar (Department: 2912)

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

Design Patent

active

D0511291

CLAIM:
The ornamental design for a doorknob, as shown and described.

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McGraw-Hill Construction Sweets Catalog, 1996., p. 30. (1 page).
Sager Hardware Catalog, 1937.,pp. 30A, 31A, & 257 (3 pages).

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