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Motor speed control for power tool
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Patent number 3,988,656
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Issue date Oct 26, 1976
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Metabowerke KG Closs, Rauch & Schnitzler
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Albrecht Schnizler
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Chuck for drill
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Patent number 3,970,323
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Issue date Jul 20, 1976
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Metabowerke KG Closs, Rauch, & Schnitzler
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Albrecht Schnizler
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Driver for nuts and screws
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Patent number 3,964,332
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Issue date Jun 22, 1976
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Metawerke KG Closs, Rauch & Schnizler
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Albrecht Schnizler
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Chuck for hammerdrills and the like
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Patent number 3,948,534
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Issue date Apr 6, 1976
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Metabowerke KG Closs, Rauch & Schnizler
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Albrecht Schnizler
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR