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Douglas Marshall
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Oakland, CA, US
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Patents Grants
last 30 patents
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Patent Grant
Flotation device
Patent number
7,559,816
Issue date
Jul 14, 2009
Douglas Marshall
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Patents Applications
last 30 patents
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Patent Application
Flotation device
Publication number
20080242170
Publication date
Oct 2, 2008
Dam Sport, LLC
Douglas Marshall
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT