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发明名称
Einbau fuer Ofenfeuerungen zur Zufuhr von Zweitluft
摘要
申请公布号
DE538398(C)
申请公布日期
1931.11.13
申请号
DED538398D
申请日期
申请人
OTTO HEMPELMANN
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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