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发明名称
Oar guard
摘要
申请公布号
US3376589(A)
申请公布日期
1968.04.09
申请号
US19660580750
申请日期
1966.09.20
申请人
CHARLES P. CHALCROFT
发明人
CHALCROFT CHARLES P.
分类号
B63H16/04;B63H16/073
主分类号
B63H16/04
代理机构
代理人
主权项
地址
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