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发明名称
Semiautomatic pipe nipple threading machine
摘要
申请公布号
US2621346(A)
申请公布日期
1952.12.16
申请号
US19480056762
申请日期
1948.10.27
申请人
PERFECTION PIPE NIPPLE COMPANY
发明人
JACOBSON IRVIN D.;HERR RICHARD F.
分类号
B23Q7/00
主分类号
B23Q7/00
代理机构
代理人
主权项
地址
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