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公开(公告)号：US2540697A
公开(公告)日：1951-02-06
申请号：US4295048
申请日：1948-08-06
Applicant: STAPLES GEORGE E
Inventor： STAPLES GEORGE E
IPC: B65H35/00
CPC classification number: B65H35/0026 , Y10T83/745 , Y10T83/896 , Y10T225/201 , Y10T225/231 , Y10T225/282 , Y10T225/291
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