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公开(公告)号：US1502637A
公开(公告)日：1924-07-22
申请号：US57987922
申请日：1922-08-05
Applicant: KONIECZKI STEVE S
Inventor： KONIECZKI STEVE S
IPC: B60B21/12
CPC classification number: B60B21/12 , Y10T152/10657 , Y10T152/10738
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