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发明名称
Procédé et dispositif pour le traitement du sable de fonderie
摘要
申请公布号
FR821916(A)
申请公布日期
1937.12.16
申请号
FRD821916
申请日期
1937.05.15
申请人
THE BEARDSLEY & PIPER COMPANY
发明人
分类号
B22C5/04
主分类号
B22C5/04
代理机构
代理人
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