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发明名称
Rueckstauverschluss
摘要
申请公布号
DE535719(C)
申请公布日期
1931.10.14
申请号
DED535719D
申请日期
申请人
BUDERUS'SCHE EISENWERKE
发明人
分类号
E03F5/042
主分类号
E03F5/042
代理机构
代理人
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