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Appliance controller
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Patent number 4,521,722
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Issue date Jun 4, 1985
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The Singer Company
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Richard C. Barthel
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G05 - CONTROLLING REGULATING
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Appliance controller
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Patent number 4,468,600
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Issue date Aug 28, 1984
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The Singer Company
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Richard C. Barthel
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G05 - CONTROLLING REGULATING
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Power switch module
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Patent number 4,291,238
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Issue date Sep 22, 1981
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Whirlpool Corporation
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Albert T. Braga
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G05 - CONTROLLING REGULATING
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3916571
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Patent number 3,916,571
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Issue date Nov 4, 1975
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR