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发明名称
Dispositif de séparation de poussières
摘要
申请公布号
FR38576(E)
申请公布日期
1931.06.15
申请号
FRD38576
申请日期
1929.10.17
申请人
发明人
PRAT EMILE
分类号
B04C1/00
主分类号
B04C1/00
代理机构
代理人
主权项
地址
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