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公开(公告)号：US3508692A
公开(公告)日：1970-04-28
申请号：US3508692D
申请日：1968-06-10
Applicant: VICTOR E HOLTAN
Inventor： HOLTAN VICTOR E
CPC classification number: B65H35/0026 , Y10T225/201 , Y10T225/231 , Y10T225/282 , Y10T225/29 , Y10T225/297 , Y10T225/298
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