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公开(公告)号：US3516466A
公开(公告)日：1970-06-23
申请号：US3516466D
申请日：1968-01-29
Applicant: MICHAEL SMIT
Inventor： SMIT MICHAEL
IPC: B60C11/16
CPC classification number: B60C11/1612 , Y10T152/10279
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