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Communication device
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Patent number 11,862,862
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Issue date Jan 2, 2024
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NEC Corporation
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Keiichi Motoi
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H01 - BASIC ELECTRIC ELEMENTS
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-
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180.degree. hybrid tee
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Patent number 4,749,969
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Issue date Jun 7, 1988
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Westinghouse Electric Corp.
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Daniel C. Boire
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H01 - BASIC ELECTRIC ELEMENTS
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-
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Microstrip hybrid ring coupler
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Patent number 4,093,928
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Issue date Jun 6, 1978
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The United States of America as represented by the Secretary of the Navy
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David Proctor
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H01 - BASIC ELECTRIC ELEMENTS
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3504304
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Patent number 3,504,304
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Issue date Mar 31, 1970
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H01 - BASIC ELECTRIC ELEMENTS
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3164791
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Patent number 3,164,791
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Issue date Jan 5, 1965
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H01 - BASIC ELECTRIC ELEMENTS
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2436828
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Patent number 2,436,828
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Issue date Mar 2, 1948
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H01 - BASIC ELECTRIC ELEMENTS
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2147809
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Patent number 2,147,809
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Issue date Feb 21, 1939
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G01 - MEASURING TESTING
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2134278
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Patent number 2,134,278
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Issue date Oct 25, 1938
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H03 - BASIC ELECTRONIC CIRCUITRY