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公开(公告)号：US1336527A
公开(公告)日：1920-04-13
申请号：US34873320
申请日：1920-01-02
Applicant: LEWIS SENECA G , DAUM GEORGE W
Inventor： LEWIS SENECA G , DAUM GEORGE W
IPC: E05F5/04
CPC classification number: E05F5/04 , E05F2005/046 , E05Y2201/224 , E05Y2600/52 , E05Y2900/132 , Y10T16/628 , Y10T16/6285
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