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发明名称
摘要
申请公布号
JPS5150860(Y2)
申请公布日期
1976.12.07
申请号
JP19720137426U
申请日期
1972.11.29
申请人
发明人
分类号
B02C18/14;B02C18/06;B02C18/18;B02C18/22;(IPC1-7):B02C18/06
主分类号
B02C18/14
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