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发明名称
Pipe accessory
摘要
申请公布号
US2633137(A)
申请公布日期
1953.03.31
申请号
US19480040317
申请日期
1948.07.23
申请人
NARRAGON PAUL E
发明人
NARRAGON PAUL E.
分类号
A24F9/04
主分类号
A24F9/04
代理机构
代理人
主权项
地址
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