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公开(公告)号：US3374801A
公开(公告)日：1968-03-26
申请号：US47314965
申请日：1965-07-19
Applicant: WERNER MACHINERY COMPANY
Inventor： RANDER ROBERT H
CPC classification number: A01J5/042 , A01J11/00 , Y10T137/2849 , Y10T137/4245 , Y10T137/4259 , Y10T137/6899 , Y10T137/6918
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