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公开(公告)号:US2788489A
公开(公告)日:1957-04-09
申请号:US29275552
申请日:1952-06-10
Applicant: HOLLYWOOD JOHN M
Inventor: HOLLYWOOD JOHN M
IPC: G01R25/00
CPC classification number: G01R25/00
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公开(公告)号:US2609490A
公开(公告)日:1952-09-02
申请号:US63965246
申请日:1946-01-07
Applicant: HOLLYWOOD JOHN M
Inventor: HOLLYWOOD JOHN M
IPC: H03J7/30
CPC classification number: H03J7/30
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公开(公告)号:US2736805A
公开(公告)日:1956-02-28
申请号:US32051052
申请日:1952-11-14
Applicant: HOLLYWOOD JOHN M
Inventor: HOLLYWOOD JOHN M
IPC: H03L7/24
CPC classification number: H03L7/24