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公开(公告)号：US3044518A
公开(公告)日：1962-07-17
申请号：US922060
申请日：1960-02-17
Applicant: WELLS GREGG JOHN DUDLEY
Inventor： WELLS GREGG JOHN DUDLEY
IPC: B60B9/06
CPC classification number: B60B9/06
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