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公开(公告)号：US1596719A
公开(公告)日：1926-08-17
申请号：US64677023
申请日：1923-06-21
Applicant: WESTINGHOUSE LAMP CO
Inventor： WILLIAM CONN ROBERT
IPC: H01J9/40
CPC classification number: H01J9/40
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公开(公告)号：US1547735A
公开(公告)日：1925-07-28
申请号：US64084523
申请日：1923-05-23
Applicant: WESTINGHOUSE LAMP CO
Inventor： WILLIAM CONN ROBERT
IPC: H01J5/24
CPC classification number: H01J5/24 , H01J2893/0039
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