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公开(公告)号:US2371683A
公开(公告)日:1945-03-20
申请号:US44914642
申请日:1942-06-30
Applicant: EITEL MCCULLOUGH INC
Inventor: EITEL WILLIAM W , MCCULLOUGH JACK A
IPC: H01J21/06
CPC classification number: H01J21/065
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公开(公告)号:US2355718A
公开(公告)日:1944-08-15
申请号:US41450641
申请日:1941-10-10
Applicant: EITEL MCCULLOUGH INC
Inventor: EITEL WILLIAM W , MCCULLOUGH JACK A
IPC: H01J21/20
CPC classification number: H01J21/20 , H01J2893/003
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