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Superlattice ultrasonic wave generator
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Patent number 4,469,977
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Issue date Sep 4, 1984
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The United States of America as represented by the Secretary of the Navy
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John J. Quinn
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3629753
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Patent number 3,629,753
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Issue date Dec 21, 1971
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B60 - VEHICLES IN GENERAL
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3615881
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Patent number 3,615,881
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Issue date Oct 26, 1971
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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3564546
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Patent number 3,564,546
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Issue date Feb 16, 1971
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G01 - MEASURING TESTING
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3435137
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Patent number 3,435,137
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Issue date Mar 25, 1969
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H01 - BASIC ELECTRIC ELEMENTS
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3413055
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Patent number 3,413,055
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Issue date Nov 26, 1968
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G02 - OPTICS
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3327265
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Patent number 3,327,265
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Issue date Jun 20, 1967
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G01 - MEASURING TESTING
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3327303
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Patent number 3,327,303
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Issue date Jun 20, 1967
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G06 - COMPUTING CALCULATING COUNTING
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3303427
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Patent number 3,303,427
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Issue date Feb 7, 1967
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H01 - BASIC ELECTRIC ELEMENTS
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2913881
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Patent number 2,913,881
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Issue date Nov 24, 1959
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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2725474
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Patent number 2,725,474
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Issue date Nov 29, 1955
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G05 - CONTROLLING REGULATING
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2666884
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Patent number 2,666,884
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Issue date Jan 19, 1954
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G05 - CONTROLLING REGULATING
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685012
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Patent number 685,012
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Issue date Oct 22, 1901
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H04 - ELECTRIC COMMUNICATION TECHNIQUE