Winch drum

Details Winch drum Winch drum

2008-04-17

2009-10-20

Ramirez, Cynthia E (Department: 2911)

Material or article handling equipment

Conveying, lifting, or transferring article

Crane or hoist

Design Patent

active

D0602674

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

REFERENCES:
patent: 3910557 (1975-10-01), Merriman
patent: 4135681 (1979-01-01), Cooper
patent: D257028 (1980-09-01), Row
patent: D278359 (1985-04-01), Sugimoto
patent: D373886 (1996-09-01), McCloud, Jr.
patent: D436520 (2001-01-01), Bulman
patent: D493697 (2004-08-01), Kay
patent: 7179041 (2007-02-01), Ebbenga
patent: D538631 (2007-03-01), Tabor et al.
patent: D583651 (2008-12-01), Kawazoe

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