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发明名称
RETRACTABLE BOAT WHEELS
摘要
申请公布号
US3499177(A)
申请公布日期
1970.03.10
申请号
USD3499177
申请日期
1968.11.21
申请人
CHESLEY L. WOLFE
发明人
CHESLEY L. WOLFE
分类号
B63C13/00;(IPC1-7):B63C1/00
主分类号
B63C13/00
代理机构
代理人
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地址
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