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发明名称
摘要
申请公布号
JPS5036637(B1)
申请公布日期
1975.11.26
申请号
JP19710024066
申请日期
1971.04.15
申请人
发明人
分类号
B22C23/00;B28B3/24;(IPC1-7):B28B3/24;B29F3/01
主分类号
B22C23/00
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代理人
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