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High information rate catacoustic system
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Patent number 4,972,387
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Issue date Nov 20, 1990
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The United States of America as represented by the Secretary of the Navy
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Henry L. Warner
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G01 - MEASURING TESTING
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Sonar system
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Patent number 4,939,699
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Issue date Jul 3, 1990
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The United States of America as represented by the Secretary of the Navy
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Francis J. Murphree
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G01 - MEASURING TESTING
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Marine mine detector
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Patent number 3,943,482
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Issue date Mar 9, 1976
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The United States of America as represented by the Secretary of the Navy
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Francis J. Murphree
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G01 - MEASURING TESTING
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Transducer
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Patent number 3,939,467
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Issue date Feb 17, 1976
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The United States of America as represented by the Secretary of the Navy
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Rufus L. Cook
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B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL