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发明名称
摘要
申请公布号
FR2131134(A5)
申请公布日期
1972.11.10
申请号
FR19710012397
申请日期
1971.03.31
申请人
ALSTHOM
发明人
分类号
E02B7/42;(IPC1-7):E02B7/00
主分类号
E02B7/42
代理机构
代理人
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地址
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