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发明名称
Improvements in the manufacture and production of cryolite
摘要
申请公布号
GB463092(A)
申请公布日期
1937.03.22
申请号
GB19360000464
申请日期
1936.01.06
申请人
I.G. FARBENINDUSTRIE AKTIENGESELLSCHAFT
发明人
分类号
C01F7/54;C25C3/06
主分类号
C01F7/54
代理机构
代理人
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