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公开(公告)号：US1503470A
公开(公告)日：1924-08-05
申请号：US65949123
申请日：1923-08-27
Applicant: ALBERT BIRO , HEINTZ ERNEST E
Inventor： ALBERT BIRO , HEINTZ ERNEST E
IPC: E05F11/38
CPC classification number: E05F11/382 , E05Y2201/49 , E05Y2900/55 , Y10T16/641
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