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发明名称
Perfectionnements aux machines travaillant sous aspiration et leurs applications
摘要
申请公布号
FR1011656(A)
申请公布日期
1952.06.25
申请号
FRD1011656
申请日期
1949.02.25
申请人
发明人
LANCELIN RENE-VITAL
分类号
B02C13/26
主分类号
B02C13/26
代理机构
代理人
主权项
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