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公开(公告)号：US1920509A
公开(公告)日：1933-08-01
申请号：US29595428
申请日：1928-07-28
Applicant: HENRY WEIS MFG COMPANY INC
Inventor： JONES ARTHUR E , LEWIS HARVEY H
IPC: E05F1/06
CPC classification number: E05F1/065 , E05Y2201/604 , E05Y2201/638 , E05Y2201/688 , Y10T16/53984
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