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经营范围
发明名称
ALUMINOTHERMIC SMELTING PROCESS
摘要
申请公布号
CA392507(A)
申请公布日期
1940.11.12
申请号
CAD392507
申请日期
申请人
UNITED STATES VANADIUM CORPORATION
发明人
OTTO H. LORANGE
分类号
主分类号
代理机构
代理人
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地址
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