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发明名称
Internal pipe cutter with screwthreaded adjustment means
摘要
申请公布号
US3406449(A)
申请公布日期
1968.10.22
申请号
US19670657236
申请日期
1967.07.31
申请人
RALPH W. DOERNER
发明人
DOERNER RALPH W.
分类号
B23D21/14
主分类号
B23D21/14
代理机构
代理人
主权项
地址
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