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1.
公开(公告)号:US2800446A
公开(公告)日:1957-07-23
申请号:US37065753
申请日:1953-07-27
Applicant: RCA CORP
Inventor: FREDENBURGH MARK N
IPC: H01J9/04
CPC classification number: H01J9/042
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公开(公告)号:US2726178A
公开(公告)日:1955-12-06
申请号:US19615850
申请日:1950-11-17
Applicant: RCA CORP
Inventor: HERBERT NELSON , FREDENBURGH MARK N
IPC: H01J1/14
CPC classification number: H01J1/14 , Y10T428/2958 , Y10T428/298
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公开(公告)号:US2800448A
公开(公告)日:1957-07-23
申请号:US42687454
申请日:1954-04-30
Applicant: RCA CORP
Inventor: FREDENBURGH MARK N
IPC: C25D13/16
CPC classification number: C25D13/16
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公开(公告)号:US2719786A
公开(公告)日:1955-10-04
申请号:US12436349
申请日:1949-10-29
Applicant: RCA CORP
Inventor: FREDENBURGH MARK N
IPC: H01K3/02
CPC classification number: H01K3/02
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公开(公告)号:US2666696A
公开(公告)日:1954-01-19
申请号:US14158050
申请日:1950-01-31
Applicant: RCA CORP
Inventor: FREDENBURGH MARK N
IPC: C22C1/04
CPC classification number: C22C1/045
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6.Method and means for preventing heater-cathode leakage in a radio tube 失效
Title translation: 用于防止无线电管中加热器 - 阴极泄漏的方法和装置-
公开(公告)号:DE867449C
公开(公告)日:1953-02-16
申请号:DER0004706
申请日:1950-10-29
Applicant: RCA CORP
Inventor: FREDENBURGH MARK N
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