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经营范围
发明名称
EARTH BORING APPARATUS
摘要
申请公布号
CA865577(A)
申请公布日期
1971.03.09
申请号
CAD865577
申请日期
申请人
TEL-E-LECT PRODUCTS
发明人
RALPH E. CARBERT
分类号
主分类号
代理机构
代理人
主权项
地址
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