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Helper Winch, Inc.
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Torrington, WY, US
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Patents Grants
last 30 patents
Information
Patent Grant
Power winch system
Patent number
5,002,259
Issue date
Mar 26, 1991
Helper Winch, Inc.
David J. Manning
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Ground anchor
Patent number
4,825,604
Issue date
May 2, 1989
Helper Winch, Inc.
David J. Manning
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Patents Applications
last 30 patents
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last 30 trademarks