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发明名称
Einrichtung zur Druckverminderung in Gasversorgungsgebieten waehrend der Nachtzeit
摘要
申请公布号
DE669372(C)
申请公布日期
1938.12.23
申请号
DE1936SC09246D
申请日期
1936.02.18
申请人
SCHIRMER, RICHTER & CO.
发明人
分类号
G05D23/12
主分类号
G05D23/12
代理机构
代理人
主权项
地址
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