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发明名称
Appareil de criblage perfectionné
摘要
申请公布号
FR943026(A)
申请公布日期
1949.02.24
申请号
FRD943026
申请日期
1947.03.11
申请人
ROYER FOUNDRY & MACHINE COMPANY
发明人
分类号
B07B1/50;B07B1/52
主分类号
B07B1/50
代理机构
代理人
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地址
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