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发明名称
摘要
申请公布号
NO136040(B)
申请公布日期
1977.04.04
申请号
NO19720001773
申请日期
1972.05.18
申请人
RHONE-PROGIL
发明人
BERTHOUX J;SCHWACHHOFER G
分类号
C01B31/26;(IPC1-7):C01B31/26
主分类号
C01B31/26
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