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Electronic notepad
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Patent number 4,785,564
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Issue date Nov 22, 1988
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Motorola Inc.
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Richard W. Gurtler
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G06 - COMPUTING CALCULATING COUNTING
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Optically driven solar engine
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Patent number 4,173,123
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Issue date Nov 6, 1979
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Motorola, Inc.
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Richard W. Gurtler
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Flat plate solar collector
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Patent number 4,092,977
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Issue date Jun 6, 1978
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Motorola, Inc.
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Richard Warren Gurtler
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F24 - HEATING RANGES VENTILATING