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公开(公告)号：US2700800A
公开(公告)日：1955-02-01
申请号：US36221653
申请日：1953-06-17
Applicant: GRAND RAPIDS HARDWARE COMPANY
Inventor： LICKTEIG ALBERT F , DICKINSON HENRY R
IPC: E05D15/22
CPC classification number: E05D15/22 , E05Y2900/148
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