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公开(公告)号:US2394045A
公开(公告)日:1946-02-05
申请号:US56935544
申请日:1944-12-22
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor: DERR WILLARD A , CHEEK ROBERT C
IPC: H04M7/16
CPC classification number: H04M7/16
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公开(公告)号:US3076899A
公开(公告)日:1963-02-05
申请号:US76333958
申请日:1958-09-25
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor: SILLIMAN SHELDON D , DERR WILLARD A
IPC: H03K21/00
CPC classification number: H03K21/00
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公开(公告)号:US3075177A
公开(公告)日:1963-01-22
申请号:US7544860
申请日:1960-12-12
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor: DERR WILLARD A , SILLIMAN SHELDON D
IPC: G08B26/00
CPC classification number: G08B26/00
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公开(公告)号:US3040297A
公开(公告)日:1962-06-19
申请号:US58757056
申请日:1956-05-28
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor: DERR WILLARD A , METZ WELDON L
IPC: H04Q9/14
CPC classification number: H04Q9/14
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公开(公告)号:US2962702A
公开(公告)日:1960-11-29
申请号:US56646856
申请日:1956-02-20
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor: DERR WILLARD A , METZ WELDON L
IPC: G08C15/06
CPC classification number: G08C15/06
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公开(公告)号:US2840797A
公开(公告)日:1958-06-24
申请号:US30426952
申请日:1952-08-14
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor: DERR WILLARD A
IPC: H04Q9/08
CPC classification number: H04Q9/08
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公开(公告)号:US2654805A
公开(公告)日:1953-10-06
申请号:US12421749
申请日:1949-10-28
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor: DERR WILLARD A
IPC: H02J13/00
CPC classification number: H02J13/0089 , Y02E60/7815 , Y04S40/121
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公开(公告)号:US2550109A
公开(公告)日:1951-04-24
申请号:US3029948
申请日:1948-06-01
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor: DERR WILLARD A
IPC: H02J13/00
CPC classification number: H02J13/00
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公开(公告)号:US2454140A
公开(公告)日:1948-11-16
申请号:US68506046
申请日:1946-07-20
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor: DERR WILLARD A
IPC: H02J13/00
CPC classification number: H02J13/00 , Y10T307/735 , Y10T307/944
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公开(公告)号:US2420871A
公开(公告)日:1947-05-20
申请号:US57563145
申请日:1945-02-01
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor: DERR WILLARD A
IPC: H02J13/00
CPC classification number: H02J13/00
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