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发明名称
摘要
申请公布号
FR2091980(A1)
申请公布日期
1972.01.21
申请号
FR19710009679
申请日期
1971.03.19
申请人
KOHRING WALTER
发明人
分类号
B63B22/02;E02B3/24;(IPC1-7):E02D27/00;E02B3/00;B63B21/00;B63B25/00
主分类号
B63B22/02
代理机构
代理人
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地址
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