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发明名称
Ventil
摘要
申请公布号
DE808660(C)
申请公布日期
1951.07.16
申请号
DE1949P035265
申请日期
1949.02.27
申请人
WINAND ESSER
发明人
ESSER WINAND
分类号
F16K41/10
主分类号
F16K41/10
代理机构
代理人
主权项
地址
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