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公开(公告)号：US2938578A
公开(公告)日：1960-05-31
申请号：US76788158
申请日：1958-10-17
Applicant: STULL JR WALTER E
Inventor： STULL JR WALTER E
CPC classification number: E05D15/24 , E05D15/165 , E05Y2201/684 , E05Y2900/106
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