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发明名称
DOCHTHUELSE FUER GERAETE ZUR LUFTVERBESSERUNG.
摘要
申请公布号
DE1696418(U)
申请公布日期
1955.04.14
申请号
DE195400F8118U
申请日期
1954.08.30
申请人
EBERHARD FETZER
发明人
EBERHARD FETZER
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主分类号
代理机构
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