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发明名称
Process and apparatus for growing single crystals
摘要
申请公布号
US2754259(A)
申请公布日期
1956.07.10
申请号
US19520323232
申请日期
1952.11.29
申请人
SPRAGUE ELECTRIC COMPANY
发明人
ROBINSON PRESTON;O'BRIAN EDWARD D.
分类号
C30B23/06;H01J37/305
主分类号
C30B23/06
代理机构
代理人
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地址
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