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经营范围
发明名称
IMPROVED CLAMPING DEVICE
摘要
申请公布号
GB1242395(A)
申请公布日期
1971.08.11
申请号
GB19670040271
申请日期
1967.09.04
申请人
THE CEMENTATION COMPANY LIMITED
发明人
JOSEPH EDWARD DOMAGALA
分类号
E21B19/12;F16B4/00
主分类号
E21B19/12
代理机构
代理人
主权项
地址
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