-
公开(公告)号:US1990639A
公开(公告)日:1935-02-12
申请号:US65890333
申请日:1933-02-28
Applicant: RCA CORP
Inventor: DEWHURST WALLACE W
IPC: H03J1/04
CPC classification number: H03J1/045
-
公开(公告)号:US2503100A
公开(公告)日:1950-04-04
申请号:US61250445
申请日:1945-08-24
Applicant: RCA CORP
Inventor: DEWHURST WALLACE W , BENNETT PAUL R
IPC: H01F21/06
CPC classification number: H01F21/06
-
公开(公告)号:US2037620A
公开(公告)日:1936-04-14
申请号:US73775234
申请日:1934-07-31
Applicant: RCA CORP
Inventor: DEWHURST WALLACE W , FRANK ESKUCHEN
CPC classification number: H01R4/027 , H01R9/20 , Y10S220/04
-
公开(公告)号:US2023517A
公开(公告)日:1935-12-10
申请号:US62332832
申请日:1932-07-19
Applicant: RCA CORP
Inventor: CREAGER FREDERICK L , DEWHURST WALLACE W
IPC: H01C1/148
CPC classification number: H01C1/148 , Y10T29/4914 , Y10T29/49169
-
公开(公告)号:US2555475A
公开(公告)日:1951-06-05
申请号:US2439348
申请日:1948-04-30
Applicant: RCA CORP
Inventor: DEWHURST WALLACE W
IPC: H03J3/28
CPC classification number: H03J3/28
-
公开(公告)号:US2397844A
公开(公告)日:1946-04-02
申请号:US46034242
申请日:1942-10-01
Applicant: RCA CORP
Inventor: DEWHURST WALLACE W
CPC classification number: G10K11/006 , H04B11/00
-
-
-
-
-