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公开(公告)号：US1523587A
公开(公告)日：1925-01-20
申请号：US71838324
申请日：1924-06-06
Applicant: WILLIAM REBMAN MCGEORGE
Inventor： DIXON DENNIS R
IPC: B60B21/12
CPC classification number: B60B21/12 , Y10T152/10657
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