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经营范围
发明名称
Water pipe drain
摘要
申请公布号
US3023768(A)
申请公布日期
1962.03.06
申请号
US19580763122
申请日期
1958.09.24
申请人
EDVARD NIEMI
发明人
NIEMI EDVARD
分类号
F16L53/00
主分类号
F16L53/00
代理机构
代理人
主权项
地址
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