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发明名称
摘要
申请公布号
JPS4421960(Y1)
申请公布日期
1969.09.17
申请号
JP19650105200U
申请日期
1965.12.22
申请人
发明人
分类号
B02B7/02;B02B3/00;(IPC1-7):B02B3/00
主分类号
B02B7/02
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代理人
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