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发明名称
Procédé pour l'obtention de matieres inorganiques a grand pouvoir de gonflement
摘要
申请公布号
BE439074(A1)
申请公布日期
1940.09.30
申请号
BE19400439074
申请日期
1940.08.16
申请人
ERBSLOEH SIEGFRIED
发明人
ERBSLOEH SIEGFRIED
分类号
C04B33/13
主分类号
C04B33/13
代理机构
代理人
主权项
地址
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