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发明名称
Casting of refractory metals
摘要
申请公布号
US2903759(A)
申请公布日期
1959.09.15
申请号
US19540441415
申请日期
1954.07.06
申请人
BRENNAN HELEN E
发明人
BRENNAN HELEN E.
分类号
B22D11/00;C22B34/12
主分类号
B22D11/00
代理机构
代理人
主权项
地址
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