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发明名称
摘要
申请公布号
FI52568(B)
申请公布日期
1977.06.30
申请号
FI19710002017
申请日期
1971.07.15
申请人
PROGIL
发明人
PIERROT FRANCOIS;SCHWACHHOFER GHISLAIN
分类号
C01B17/04;C01B31/26;(IPC1-7):C01B31/26
主分类号
C01B17/04
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