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公开(公告)号：US3511301A
公开(公告)日：1970-05-12
申请号：US3511301D
申请日：1967-10-26
Applicant: GRAHAM DOOR CO
Inventor： GRAHAM JOHN R , MALEK WALTER K , COMP ROBERT H , SUBSTELNY HENRY Z
CPC classification number: E06B3/486 , E05D1/04 , E05D15/165 , E05D15/24 , E05D15/242 , E05Y2201/684 , E05Y2900/106 , E06B3/485
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