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发明名称
Gegenstromschalldaempfer
摘要
申请公布号
DE557311(C)
申请公布日期
1932.08.20
申请号
DED557311D
申请日期
1930.10.04
申请人
ALFRED SCHROEDER
发明人
分类号
F01N1/00;F01N1/06;F01N1/08
主分类号
F01N1/00
代理机构
代理人
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地址
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