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公开(公告)号：US2221450A
公开(公告)日：1940-11-12
申请号：US6027836
申请日：1936-01-22
Applicant: GEN MOTORS CORP
Inventor： JENNINGS CHESTER S , GERARD FRANK W
IPC: F24F3/14
CPC classification number: F24F3/1417 , F24F2003/144
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