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Power clamp with track wiper
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Patent number 4,854,564
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Issue date Aug 8, 1989
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Delaware Capital Formation, Inc.
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Alexander W. McPherson
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Locking power clamp
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Patent number 4,793,602
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Issue date Dec 27, 1988
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De-Sta-Co Division, Dover Resources, Inc.
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Alexander W. McPherson
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Rotary powered linear actuated clamp
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Patent number 4,723,767
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Issue date Feb 9, 1988
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De-Sta-Co Division, Dover Resources, Inc.
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Alexander W. McPherson
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS