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公开(公告)号:US2411988A
公开(公告)日:1946-12-03
申请号:US52609244
申请日:1944-03-11
Applicant: EITEL MCCULLOUGH INC
Inventor: DRIESCHMAN DONALD F , GORDON SHEPHERD , MENDEL RABINAWITZ , NEWHALL JR ALMER M , SORG HAROLD E
IPC: H01J19/00
CPC classification number: H01J19/00 , H01J2893/0026
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公开(公告)号:US2422827A
公开(公告)日:1947-06-24
申请号:US52609344
申请日:1944-03-11
Applicant: EITEL MCCULLOUGH INC
Inventor: DRIESCHMAN DONALD F , GORDON SHEPHERD , MENDEL RABINAWITZ , NEWHALL JR ALMER M , SORG HAROLD E
IPC: B21F27/12
CPC classification number: B21F27/12
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