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经营范围
发明名称
Equalizing nonreflux return elbow
摘要
申请公布号
US1978730(A)
申请公布日期
1934.10.30
申请号
US19320604937
申请日期
1932.04.13
申请人
WEBER ERWIN L
发明人
WEBER ERWIN L.
分类号
F16K15/06
主分类号
F16K15/06
代理机构
代理人
主权项
地址
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