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公开(公告)号：US2930440A
公开(公告)日：1960-03-29
申请号：US68694057
申请日：1957-09-30
Applicant: GEN MOTORS CORP
Inventor： FETZER GEORGE L , MORRISH LEONARD M
CPC classification number: F01N13/185 , F01N1/02 , F01N13/02 , F01N2450/20 , F01N2470/10 , F01N2470/30 , F01N2490/15 , F01N2490/155
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