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经营范围
发明名称
Zungen-Ventil
摘要
申请公布号
DE532352(C)
申请公布日期
1931.08.27
申请号
DED532352D
申请日期
申请人
OTTO HEINRICH
发明人
分类号
F16K15/16
主分类号
F16K15/16
代理机构
代理人
主权项
地址
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