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公开(公告)号：US2309928A
公开(公告)日：1943-02-02
申请号：US36186640
申请日：1940-10-19
Applicant: US RUBBER CO
Inventor： BENNETT THOMAS A
IPC: B65G15/34
CPC classification number: B65G15/34 , B65G2201/06 , Y10T428/2476
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