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发明名称
Procédé de régénération des sables résiduaires des moules et noyaux de moulage durcis chimiquement
摘要
申请公布号
FR1124871(A)
申请公布日期
1956.10.19
申请号
FRD1124871
申请日期
1955.05.21
申请人
发明人
PETRZELA LEV
分类号
B22C5/08
主分类号
B22C5/08
代理机构
代理人
主权项
地址
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