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发明名称
Pipe tong
摘要
申请公布号
US3330552(A)
申请公布日期
1967.07.11
申请号
US19640337459
申请日期
1964.01.13
申请人
SIEGFRIED BUCHER
发明人
BUCHER SIEGFRIED
分类号
E21B19/16
主分类号
E21B19/16
代理机构
代理人
主权项
地址
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