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公开(公告)号：US1464136A
公开(公告)日：1923-08-07
申请号：US53952522
申请日：1922-02-27
Applicant: KEGLEY JOHN L
Inventor： KEGLEY JOHN L
IPC: B60B21/12
CPC classification number: B60B21/12 , Y10T152/10738
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