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经营范围
发明名称
ARRANGEMENT OF A HIGH VACUUM ELECTRONIC DISCHARGE TUBE PROVIDED WITH A GETTER ION PUMP OPERATING IN MAGNETIC FIELDS
摘要
申请公布号
US3588563(A)
申请公布日期
1971.06.28
申请号
USD3588563
申请日期
1969.02.19
申请人
U.S. PHILIPS CORP.
发明人
WOLFGANG SCHMIDT
分类号
H01J23/00;H01J41/20;(IPC1-7):H01J7/16;H01J25/50
主分类号
H01J23/00
代理机构
代理人
主权项
地址
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