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Magnetic marine compass
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Patent number 6,665,944
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Issue date Dec 23, 2003
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Rule Industries, Inc.
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Yu-Feng Wei
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G01 - MEASURING TESTING
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Marine in bilge blower
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Patent number 6,471,473
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Issue date Oct 29, 2002
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Rule Industries, Inc.
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Bruce Wilkinson
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Pump and controller system and method
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Patent number 6,390,780
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Issue date May 21, 2002
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Rule Industries, Inc.
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Scott K. Batchelder
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Plow anchor for marine use
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Patent number 4,827,863
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Issue date May 9, 1989
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Rule Industries, Inc.
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Max Scholz
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT