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发明名称
摘要
申请公布号
JPS52160884(U)
申请公布日期
1977.12.06
申请号
JP19760069644U
申请日期
1976.06.01
申请人
发明人
分类号
B03C3/155;B03C3/60;(IPC1-7):B03C3/60
主分类号
B03C3/155
代理机构
代理人
主权项
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