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Sensor circuit
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Patent number 4,745,275
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Issue date May 17, 1988
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Kabushiki Kaisha Toshiba
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Koji Osafune
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G11 - INFORMATION STORAGE
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2780465
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Patent number 2,780,465
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Issue date Feb 5, 1957
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G11 - INFORMATION STORAGE
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2762626
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Patent number 2,762,626
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Issue date Sep 11, 1956
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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2374570
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Patent number 2,374,570
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Issue date Apr 24, 1945
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G11 - INFORMATION STORAGE
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2348506
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Patent number 2,348,506
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Issue date May 9, 1944
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G11 - INFORMATION STORAGE