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经营范围
发明名称
METHOD OF CRUCIBLE-FREE ZONE MELTING
摘要
申请公布号
CA816666(A)
申请公布日期
1969.07.01
申请号
CAD816666
申请日期
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
WOLFGANG KELLER;KONRAD REUSCHEL
分类号
主分类号
代理机构
代理人
主权项
地址
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