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公开(公告)号：US2454791A
公开(公告)日：1948-11-30
申请号：US63928646
申请日：1946-01-05
Applicant: STANDARD TELEPHONES CABLES LTD
Inventor： THOMAS GIBSON WILLIAM
IPC: H01J19/50
CPC classification number: H01J19/50 , H01J2893/0008
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公开(公告)号：US2452561A
公开(公告)日：1948-11-02
申请号：US46076442
申请日：1942-10-05
Applicant: STANDARD TELEPHONES CABLES LTD
Inventor： THOMAS GIBSON WILLIAM
IPC: H01J25/08
CPC classification number: H01J25/08
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公开(公告)号：US2423066A
公开(公告)日：1947-06-24
申请号：US54533944
申请日：1944-07-17
Applicant: STANDARD TELEPHONES CABLES LTD
Inventor： THOMAS GIBSON WILLIAM
IPC: H01J5/20
CPC classification number: H01J5/20 , H01J2893/0037
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