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公开(公告)号：US1393909A
公开(公告)日：1921-10-18
申请号：US29697819
申请日：1919-05-14
Applicant: JOSEPH SAULSBERRY
Inventor： JOSEPH SAULSBERRY
IPC: B60C7/12
CPC classification number: B60C7/125 , Y10T152/10441
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