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1.Method of producing electron bulbs with high emission cathodes 失效
Title translation: 具有高发射阴极的电子灯泡的制造方法公开(公告)号:US2016699A
公开(公告)日:1935-10-08
申请号:US64219132
申请日:1932-11-11
Applicant: ERNST WALDSCHMIDT
Inventor: ERNST WALDSCHMIDT
IPC: H01J9/04
CPC classification number: H01J9/047 , Y10S428/929 , Y10T428/12826
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2.Method of producing highly emissive cathodes according to the metallic vapor process 失效
Title translation: 根据金属蒸气过程生产高发射阴极的方法公开(公告)号:US1949094A
公开(公告)日:1934-02-27
申请号:US61723732
申请日:1932-06-14
Applicant: ERNST WALDSCHMIDT
Inventor: ERNST WALDSCHMIDT
IPC: H01J9/04
CPC classification number: H01J9/042
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公开(公告)号:US2039134A
公开(公告)日:1936-04-28
申请号:US64594132
申请日:1932-12-06
Applicant: ERNST WALDSCHMIDT
Inventor: ERNST WALDSCHMIDT
IPC: H01J40/18
CPC classification number: H01J40/18
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公开(公告)号:US2356635A
公开(公告)日:1944-08-22
申请号:US32773640
申请日:1940-04-03
Applicant: ERNST WALDSCHMIDT , ANTON BAYER
Inventor: ERNST WALDSCHMIDT , ANTON BAYER
IPC: A21D2/18
CPC classification number: A21D2/183
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