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发明名称
Pipe working tool
摘要
申请公布号
US2966819(A)
申请公布日期
1961.01.03
申请号
US19570634367
申请日期
1957.01.15
申请人
BEAVER PIPE TOOLS, INC.
发明人
PEALER ROBERT B.
分类号
B23D21/00
主分类号
B23D21/00
代理机构
代理人
主权项
地址
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