Rope winch type roller unit

Details Rope winch type roller unit Rope winch type roller unit

2011-08-30

2011-08-30

Ramirez, Cynthia (Department: 2911)

Material or article handling equipment

Conveying, lifting, or transferring article

Crane or hoist

Design Patent

active

D0644403

CLAIM:
The ornamental design for a rope winch type roller unit, as shown and described.

REFERENCES:
patent: D315976 (1991-04-01), Shieh
patent: D388929 (1998-01-01), Kuryu
patent: 5954285 (1999-09-01), Whisenhunt
patent: D459048 (2002-06-01), Leemans
patent: D517268 (2006-03-01), Fatzinger
patent: D550923 (2007-09-01), Huang
patent: D586073 (2009-02-01), Tsao
patent: D596824 (2009-07-01), Mitas
patent: 7717402 (2010-05-01), Mann
patent: 2009/0173924 (2009-07-01), Alipour et al.

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