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发明名称
DURCHFLUSSVENTIL MIT SCHRAEGEM ELLIPTISCHEN SITZ.
摘要
申请公布号
DE1648435(U)
申请公布日期
1952.12.24
申请号
DE195100R2803U
申请日期
1951.06.07
申请人
RHEINISCHES METALLWERK G.M.B.H.
发明人
分类号
主分类号
代理机构
代理人
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