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公开(公告)号：US2067798A
公开(公告)日：1937-01-12
申请号：US5238435
申请日：1935-11-30
Applicant: SONGER FREDERICK E
Inventor： SONGER FREDERICK E
CPC classification number: E05D3/12 , E05D15/1065 , E05D2015/1086 , E05Y2201/602 , E05Y2201/624 , E05Y2900/148 , Y10T16/54026 , Y10T16/545 , Y10T16/547
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