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发明名称
Tapping and valve assembly for plastic pipe
摘要
申请公布号
US3176708(A)
申请公布日期
1965.04.06
申请号
US19620242815
申请日期
1962.12.06
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
SHIELDS JOHN
分类号
F16L41/04;F16L41/06;F16L47/34
主分类号
F16L41/04
代理机构
代理人
主权项
地址
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