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发明名称
SLIDING CLOSURE FOR A PAPPING HOLE IN PARTICULAR THAT OF STEELMAKING FURNACE
摘要
申请公布号
PL138478(B1)
申请公布日期
1986.09.30
申请号
PL19840246232
申请日期
1984.02.14
申请人
发明人
分类号
B22D;B22D41/08;F27D;F27D3/15;(IPC1-7):B22D41/08
主分类号
B22D
代理机构
代理人
主权项
地址
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