Screw clamp

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning

Design Patent

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Design Patent

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D0467152

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

REFERENCES:
patent: 1452753 (1923-04-01), Otto et al.
patent: 1708617 (1929-04-01), Hargrave
patent: 1751620 (1930-03-01), Clarke
patent: 1793561 (1931-02-01), Schmieder
patent: 2168257 (1939-08-01), Farmer
patent: 5197360 (1993-03-01), Wooster, Jr.
patent: 5427364 (1995-06-01), Zborschil
patent: D413429 (1999-09-01), Carson
American Clamping Corp. 1995 Bessey Tradesmen Clamps.*
Tool Crib of the North 1991-92 Asst. Bar Clamps.

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