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公开(公告)号：US1520199A
公开(公告)日：1924-12-23
申请号：US56387822
申请日：1922-05-26
Applicant: MORGAN ROBERT P
Inventor： MORGAN ROBERT P
IPC: E05F5/04
CPC classification number: E05F5/04 , E05F2005/046 , E05Y2201/224 , E05Y2600/52 , E05Y2900/132 , Y10T16/628 , Y10T16/6285
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