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经营范围
发明名称
Boat anchor
摘要
申请公布号
US2894474(A)
申请公布日期
1959.07.14
申请号
US19560572679
申请日期
1956.03.20
申请人
KELLER DONALDSON RALPH
发明人
DONALDSON RALPH KELLER
分类号
B63B21/22;B63B21/46
主分类号
B63B21/22
代理机构
代理人
主权项
地址
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