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公开(公告)号：US1458258A
公开(公告)日：1923-06-12
申请号：US1458258D
CPC classification number: B60W10/18 , B60W10/04 , Y10T477/8941
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公开(公告)号：US1406402A
公开(公告)日：1922-02-14
申请号：US32478319
申请日：1919-09-19
Applicant: MAY RUSSELL P
Inventor： MAY RUSSELL P
CPC classification number: B60W10/18 , B60W10/04 , Y10T477/8941
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