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发明名称
Focus control for electron beam heating
摘要
申请公布号
US3158733(A)
申请公布日期
1964.11.24
申请号
US19620223125
申请日期
1962.09.12
申请人
NATIONAL RESEARCH CORPORATION
发明人
SIBLEY CLIFTON B.
分类号
H01J37/21
主分类号
H01J37/21
代理机构
代理人
主权项
地址
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