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公开(公告)号：US1451327A
公开(公告)日：1923-04-10
申请号：US57332922
申请日：1922-07-07
Applicant: DARIUS CUNNINGHAM JOHN
Inventor： DARIUS CUNNINGHAM JOHN
IPC: B60B9/22
CPC classification number: B60B9/22 , Y10T152/10126
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