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发明名称
MANUFACTURE OF REFRACTORIES
摘要
申请公布号
CA479758(A)
申请公布日期
1951.12.25
申请号
CAD479758
申请日期
申请人
THE PERMANENTE METALS CORPORATION
发明人
LESLIE W. AUSTIN
分类号
主分类号
代理机构
代理人
主权项
地址
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