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公开(公告)号：US3154303A
公开(公告)日：1964-10-27
申请号：US16485262
申请日：1962-01-08
Applicant: BLACK CLAWSON CO
Inventor： CAVALLERO LOUIS T , MCKELLAR ROBERT R , WALKER JAMES L
CPC classification number: E05F15/59 , E05F15/44 , E05Y2201/20 , E05Y2201/246 , E05Y2201/458 , E05Y2201/462 , E05Y2400/52 , E05Y2800/254 , Y10S60/903
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