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发明名称
Perfectionnements aux moules, et en particulier aux noyaux de fonderie, et à leur fabrication
摘要
申请公布号
FR55427(E)
申请公布日期
1952.06.30
申请号
FRD55427
申请日期
1941.11.26
申请人
COMPAGNIE NATIONALE DE MATIERES COLORANTES ET MANUFACTURES DE PRODUITS CHIMIQUES DU NORD REUNIES
发明人
PASSELECQ GEORGES
分类号
B22C1/18
主分类号
B22C1/18
代理机构
代理人
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