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公开(公告)号：US1378123A
公开(公告)日：1921-05-17
申请号：US36934620
申请日：1920-03-27
Applicant: ELMER LOVEJOY
Inventor： ELMER LOVEJOY
IPC: E05F15/16
CPC classification number: E05F15/665 , E05D13/145 , E05Y2201/21 , E05Y2201/22 , E05Y2201/654 , E05Y2201/66 , E05Y2201/664 , E05Y2900/106
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