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发明名称
Pipe cutting and beveling apparatus
摘要
申请公布号
US1858077(A)
申请公布日期
1932.05.10
申请号
US19300493820
申请日期
1930.11.06
申请人
DOUGLASS BROTHERS COMPANY
发明人
DOUGLASS FRANK J.;MCCAWLEY ALBERT S.
分类号
B23K7/00
主分类号
B23K7/00
代理机构
代理人
主权项
地址
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