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CA1004160A
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Brake mechanism for winch drums
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CA974086A
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Two speed primary drive assembly for hydraulic winch
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US3797325A
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Two speed primary drive assembly for hydraulic winch
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CA944343A
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Power control winch
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US3756564A
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Power control winch
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CA870458A
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Quick release drum cable anchor
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US3582011A
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Quick release drum cable anchor
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CA856502A
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Free wheel final drive assembly
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US3519247A
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Freewheel final drive assembly
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US3184018A
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Reversible drive assembly including fluid-powered prime mover
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US3168336A
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Joint and lock mechanism for telescoping spar
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CA666981A
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Portable spar with counter-balance mechanism for bias-mounted head block
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CA711073A
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Reversible drive assembly including fluid-powered prime mover
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