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公开(公告)号：US1997793A
公开(公告)日：1935-04-16
申请号：US48317730
申请日：1930-09-20
Applicant: GEN MOTORS CORP
Inventor： HULL HARRY B , KAMPMAN CURTIS E
IPC: F25D25/02
CPC classification number: F25D25/02 , F25D2325/023
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