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发明名称
Perfectionnements à la fabrication de matériaux de construction
摘要
申请公布号
FR940204(A)
申请公布日期
1948.12.07
申请号
FRD940204
申请日期
1947.01.30
申请人
发明人
BERRY ARTHUR FRANCIS
分类号
C04B18/06
主分类号
C04B18/06
代理机构
代理人
主权项
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