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发明名称
MIT EINER HAND ZU BETAETIGENDE TUBEN-VERSCHLUESSE.
摘要
申请公布号
DE1624486(U)
申请公布日期
1951.06.14
申请号
DE195100D2333U
申请日期
1951.03.30
申请人
ERNST DOEHRING
发明人
ERNST DOEHRING
分类号
主分类号
代理机构
代理人
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