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公开(公告)号:US2955637A
公开(公告)日:1960-10-11
申请号:US68756457
申请日:1957-10-01
Applicant: ALAN HARTZMARK
Inventor: ALAN HARTZMARK
IPC: B60C15/028
CPC classification number: B60C15/028
公开(公告)号:US2955637A
公开(公告)日:1960-10-11
申请号:US68756457
申请日:1957-10-01
Applicant: ALAN HARTZMARK
Inventor: ALAN HARTZMARK
IPC: B60C15/028
CPC classification number: B60C15/028