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公开(公告)号：US3127997A
公开(公告)日：1964-04-07
申请号：US25302563
申请日：1963-01-18
Applicant: STANRAY CORP
Inventor： JOHN LAHEY PARKER
CPC classification number: B61G3/08 , B61G7/02 , Y10T74/2075
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