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Acoustic survey technique
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Patent number 5,995,445
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Issue date Nov 30, 1999
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The United States of America as represented by the Secretary of the Navy
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Eric James Whitesell
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G01 - MEASURING TESTING
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Frequency dispersive transmitting array
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Patent number 5,150,336
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Issue date Sep 22, 1992
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The United States of America as represented by the Secretary of the Navy
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Shelby F. Sullivan
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Acoustic, underwater, telemetry system
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Patent number 5,029,147
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Issue date Jul 2, 1991
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The United States of America as represented by the Secretary of the Navy
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Guy J. Andrews
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H04 - ELECTRIC COMMUNICATION TECHNIQUE