公开(公告)号：US2018483A

公开(公告)日：1935-10-22

申请号：US65409533

申请日：1933-01-28

Applicant: GEN MOTORS CORP

Inventor： BREWER FRANCIS T

IPC: H02M7/533

CPC classification number: H02M7/533 ,  Y10T307/878

公开(公告)号：US1964426A

公开(公告)日：1934-06-26

申请号：US64457832

申请日：1932-11-28

Applicant: GEN MOTORS CORP

Inventor： BREWER FRANCIS T ,  WERNER CALVIN J

IPC: H01H73/24

CPC classification number: H01H73/24