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公开(公告)号:US2862133A
公开(公告)日:1958-11-25
申请号:US57320056
申请日:1956-03-22
Applicant: ERICSSON TELEPHONES LTD
Inventor: REGINALD ACTON JOHN , HAROLD WESTLEY KENNETH
IPC: H01J17/24
CPC classification number: H01J17/24
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2.
公开(公告)号:US2896118A
公开(公告)日:1959-07-21
申请号:US55757156
申请日:1956-01-05
Applicant: ERICSSON TELEPHONES LTD
Inventor: JOHN WILLIAMS DAVID , HAROLD WESTLEY KENNETH
IPC: H01J17/48
CPC classification number: H01J17/48 , H01J2893/007
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