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发明名称
摘要
申请公布号
JPS457619(Y1)
申请公布日期
1970.04.13
申请号
JP19670042405U
申请日期
1967.05.20
申请人
发明人
分类号
(IPC1-7):B22D17/22;B22D45/00
主分类号
(IPC1-7):B22D17/22
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