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Electrical contact material
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Patent number 4,115,325
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Issue date Sep 19, 1978
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Texas Instruments Incorporated
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Teuvo J. Santala
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Solar absorption surface panel
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Patent number 4,071,659
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Issue date Jan 31, 1978
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Texas Instruments Incorporated
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Teuvo J. Santala
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F24 - HEATING RANGES VENTILATING
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High gain relays and systems
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Patent number 4,007,404
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Issue date Feb 8, 1977
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Texas Instruments Incorporated
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Ernest M. Jost
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H01 - BASIC ELECTRIC ELEMENTS
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High gain relays and systems
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Patent number 3,968,380
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Issue date Jul 6, 1976
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Texas Instruments Incorporated
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Ernest M. Jost
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H01 - BASIC ELECTRIC ELEMENTS
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Catalytic converter
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Patent number 3,953,176
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Issue date Apr 27, 1976
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Texas Instruments Incorporated
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Teuvo J. Santala
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES