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公开(公告)号：US2228394A
公开(公告)日：1941-01-14
申请号：US23992238
申请日：1938-11-12
Applicant: GEN MOTORS CORP
Inventor： MARVIN JOHN T , LIGNIAN JEAN A
CPC classification number: F16C23/04 , F16C27/063
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公开(公告)号：US2203895A
公开(公告)日：1940-06-11
申请号：US24956039
申请日：1939-01-06
Applicant: GEN MOTORS CORP
Inventor： DAVIS JAMES H , KOEHRING ROLAND P , MARVIN JOHN T
IPC: B22F3/11
CPC classification number: B22F3/1121 , B22F2999/00 , B22F3/101 , B22F2201/01 , B22F2201/03
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