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公开(公告)号：US1671774A
公开(公告)日：1928-05-29
申请号：US63768923
申请日：1923-05-09
Applicant: BURTNETT MCINTOSH
Inventor： BURTNETT MCINTOSH
IPC: B60B33/02
CPC classification number: B60B33/021 , Y10T16/195 , Y10T16/201
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