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摘要
申请公布号
CH524726(A)
申请公布日期
1972.06.30
申请号
CH19710006732
申请日期
1971.05.06
申请人
HELBLING,ROMAN
发明人
HELBLING,ROMAN
分类号
E01B7/24;(IPC1-7):E01B7/24
主分类号
E01B7/24
代理机构
代理人
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地址
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