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经营范围
发明名称
Pipe wrench
摘要
申请公布号
US1761280(A)
申请公布日期
1930.06.03
申请号
US19280248714
申请日期
1928.01.23
申请人
SAM SORENSEN
发明人
SORENSEN SAM
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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