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发明名称
Pipe tapper
摘要
申请公布号
US2219997(A)
申请公布日期
1940.10.29
申请号
US19380220362
申请日期
1938.07.20
申请人
GEORGE MARANGELO
发明人
MARANGELO GEORGE
分类号
B23B41/08;B23B45/12;F16L41/06
主分类号
B23B41/08
代理机构
代理人
主权项
地址
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