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发明名称
Rückstausichere Schachtabdeckung
摘要
申请公布号
AT223140(B)
申请公布日期
1962.08.27
申请号
AT19610003689
申请日期
1961.05.10
申请人
PASSAVANT-WERKE
发明人
DIPL. ING. WILHELM REUTER
分类号
主分类号
代理机构
代理人
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