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3109404
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Patent number 3,109,404
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Issue date Nov 5, 1963
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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2847964
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Patent number 2,847,964
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Issue date Aug 19, 1958
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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2564115
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Patent number 2,564,115
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Issue date Aug 14, 1951
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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1623888
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Patent number 1,623,888
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Issue date Apr 5, 1927
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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1339663
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Patent number 1,339,663
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Issue date May 11, 1920
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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1296646
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Patent number 1,296,646
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Issue date Mar 11, 1919
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT