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发明名称
KERAMISCHES GITTER FUER DER BE- UND ENTLUEFTUNG DIENENDE OEFFNUNGEN.
摘要
申请公布号
DE1702589(U)
申请公布日期
1955.07.14
申请号
DE195500E7048U
申请日期
1955.04.27
申请人
HANS ESKA
发明人
HANS ESKA
分类号
主分类号
代理机构
代理人
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