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发明名称
摘要
申请公布号
SE329319(B)
申请公布日期
1970.10.05
申请号
SE19670004071
申请日期
1967.03.22
申请人
PRENCO MANUFACTURING CO
发明人
BROPHY J
分类号
C01B17/90;C01G49/06;C23G1/36;(IPC1-7):23G1/36
主分类号
C01B17/90
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代理人
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