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摘要
申请公布号
FI81732(B)
申请公布日期
1990.08.31
申请号
FI19880000061
申请日期
1988.01.07
申请人
OY FINNPULVA AB
发明人
NIEMI, JOUKO;LUUKKONEN, KIMMO
分类号
B02C;B02C19/06;B02C23/10;(IPC1-7):B02C23/10
主分类号
B02C
代理机构
代理人
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