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公开(公告)号：US2401024A
公开(公告)日：1946-05-28
申请号：US58718345
申请日：1945-04-07
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： SATEREN MARTIN G
IPC: H04M11/00
CPC classification number: H04M11/007
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公开(公告)号：US2401023A
公开(公告)日：1946-05-28
申请号：US58718245
申请日：1945-04-07
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： SATEREN MARTIN G , DERR WILLARD A
IPC: H04M11/00
CPC classification number: H04M11/007
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