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公开(公告)号:CA855863A
公开(公告)日:1970-11-10
申请号:CA855863D
Applicant: RCA CORP
Inventor: FISCHBECK KENNETH H , HEROLD EDWARD W
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公开(公告)号:FI23599A
公开(公告)日:1949-04-09
申请号:FI23599D
申请日:1941-08-21
Applicant: RCA CORP
Inventor: HEROLD EDWARD W
IPC: H03D7/06
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