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公开(公告)号：US2009410A
公开(公告)日：1935-07-30
申请号：US60805432
申请日：1932-04-28
Applicant: GEN MOTORS CORP
Inventor： PEARCE GEORGE C , FORD ALEXANDER DONALD
CPC classification number: G05D23/121 , F25B49/025 , F25B2600/0251 , F25B2700/2117 , F25D29/005
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