Inventor
HUGHES SR ROBERT K
US5 patents
Patents
5 patentsUS6109820AAug 29, 2000
Anchor base for flexible marker
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Artificial reef
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Replaceable flexible marker
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US6732673B2May 11, 2004
Drivable post and marker
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US6604485B1Aug 12, 2003
Drivable post and marker
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