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经营范围
发明名称
Bow facing oar
摘要
申请公布号
US2000630(A)
申请公布日期
1935.05.07
申请号
US19330687435
申请日期
1933.08.30
申请人
WILLIAMS SION H
发明人
WILLIAMS SION H.
分类号
B63H16/10
主分类号
B63H16/10
代理机构
代理人
主权项
地址
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