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Surface elastic wave device
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Patent number 4,973,875
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Issue date Nov 27, 1990
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Nihon Musen Kabushiki Kaisha
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Hiromi Yatsuda
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H03 - BASIC ELECTRONIC CIRCUITRY
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Acoustic guided wave devices
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Patent number 4,328,472
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Issue date May 4, 1982
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United Technologies Corporation
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Thomas W. Grudkowski
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H03 - BASIC ELECTRONIC CIRCUITRY
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3886503
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Patent number 3,886,503
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Issue date May 27, 1975
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3777274
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Patent number 3,777,274
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Issue date Dec 4, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3753157
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Patent number 3,753,157
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Issue date Aug 14, 1973
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G02 - OPTICS
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3749984
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Patent number 3,749,984
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Issue date Jul 31, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3743973
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Patent number 3,743,973
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Issue date Jul 3, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3697899
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Patent number 3,697,899
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Issue date Oct 10, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY
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3654574
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Patent number 3,654,574
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Issue date Apr 4, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY