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经营范围
发明名称
Erdbohrunterschneidewerkzeug
摘要
申请公布号
CH370020(A)
申请公布日期
1963.06.15
申请号
CH19580057733
申请日期
1958.03.31
申请人
ECONOMIC FOUNDATIONS LIMITED
发明人
MCALPINE,KENNETH
分类号
E21B10/32
主分类号
E21B10/32
代理机构
代理人
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地址
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