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发明名称
OELBALD-LUFTFILTER MIT NACHFILTEREINSATZ.
摘要
申请公布号
DE1675982(U)
申请公布日期
1954.05.06
申请号
DE195400K5037U
申请日期
1954.03.13
申请人
ALFRED KNECHT
发明人
ALFRED KNECHT
分类号
主分类号
代理机构
代理人
主权项
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