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发明名称
IMPROVEMENTS IN OR RELATING TO REFRACTORY BRICKS
摘要
申请公布号
GB1294491(A)
申请公布日期
1972.10.25
申请号
GB19700028691
申请日期
1970.06.12
申请人
SIGRI ELEKTROGRAPHIT
发明人
ETZEL K;WIHELMI G
分类号
C04B35/532;C21B7/06
主分类号
C04B35/532
代理机构
代理人
主权项
地址
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