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发明名称
METHOD OF AND APPARATUS FOR MAKING LARGE CASTINGS WHICHFORM SEGMENTS OF AN ANNULUS,ESPECIALLY THOSE OF TUBING TYPE
摘要
申请公布号
PL111417(B1)
申请公布日期
1980.08.30
申请号
PL19770195486
申请日期
1977.01.21
申请人
发明人
分类号
B22D;B22D11/04;B22D11/128;(IPC1-7):B22D11/04
主分类号
B22D
代理机构
代理人
主权项
地址
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