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发明名称
Perfectionnements aux ancres flottantes
摘要
申请公布号
FR933634(A)
申请公布日期
1948.04.27
申请号
FRD933634
申请日期
1946.09.13
申请人
发明人
FRIEDER LEONARD PETER
分类号
B63B21/48
主分类号
B63B21/48
代理机构
代理人
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