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公开(公告)号：US2772353A
公开(公告)日：1956-11-27
申请号：US27372052
申请日：1952-02-27
Applicant: STANDARD COIL PROD CO INC
Inventor： BROWDER JAY E
IPC: H03J5/30
CPC classification number: H03J5/30 , Y10S116/29
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公开(公告)号：US2772354A
公开(公告)日：1956-11-27
申请号：US34557353
申请日：1953-03-17
Applicant: STANDARD COIL PROD CO INC
Inventor： BROWDER JAY E
IPC: H03J5/30
CPC classification number: H03J5/30
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