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Diver heater system
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Patent number 4,294,225
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Issue date Oct 13, 1981
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Energy Systems Corporation
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Kenneth E. Mayo
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Slurry cooling of helmets
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Patent number 4,172,495
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Issue date Oct 30, 1979
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Energy Systems Corporation
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William H. Zebuhr
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A42 - HEADWEAR
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Diver heater system
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Patent number 4,167,932
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Issue date Sep 18, 1979
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Energy Systems Corporation
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William H. Zebuhr
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Buoyant sphere
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Patent number 4,010,704
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Issue date Mar 8, 1977
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Energy Systems Corporation
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Kenneth E. Mayo
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT