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发明名称
CLOSURES FOR METALLURGICAL VESSEL POURING APERTURES
摘要
申请公布号
GB8805186(D0)
申请公布日期
1988.04.07
申请号
GB19880005186
申请日期
1988.03.04
申请人
BRITISH STEEL CORPORATION
发明人
分类号
B22D41/44;B22D37/00;B22D43/00
主分类号
B22D41/44
代理机构
代理人
主权项
地址
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