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John Highfield
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Gladwin, MI, US
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last 30 patents
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Patent Grant
Retractable pontoon boat cover
Patent number
8,359,994
Issue date
Jan 29, 2013
John Highfield
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Patent Grant
Retractable pontoon boat cover
Patent number
7,484,472
Issue date
Feb 3, 2009
John Highfield
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT