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发明名称
VORRICHTUNG ZUR VERMEIDUNG DES VERRUSSENS DER OPTIK LICHTELEKTRISCHER RAUCHDICHTEMESSGERAETE.
摘要
申请公布号
DE1724590(U)
申请公布日期
1956.06.21
申请号
DE195600D2127U
申请日期
1956.04.16
申请人
DURAG-APPARATEBAU G.M.B.H.
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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