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Torque indicator
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Patent number 4,808,976
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Issue date Feb 28, 1989
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Kiefers, Ltd.
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Walter J. Kiefer
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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3894245
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Patent number 3,894,245
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Issue date Jul 8, 1975
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H01 - BASIC ELECTRIC ELEMENTS
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3343008
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Patent number 3,343,008
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3270187
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G02 - OPTICS
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2841725
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1417734
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B60 - VEHICLES IN GENERAL
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1318754
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B60 - VEHICLES IN GENERAL
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469656
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER