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公开(公告)号：US3037250A
公开(公告)日：1962-06-05
申请号：US83968759
申请日：1959-09-14
Applicant: GRAND RAPIDS HARDWARE COMPANY
Inventor： DE BRUYN WILLIAM T
IPC: E06B3/44
CPC classification number: E06B3/44 , E06B3/4407 , E06B2003/4446
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公开(公告)号：US3121923A
公开(公告)日：1964-02-25
申请号：US14792561
申请日：1961-10-26
Applicant: GRAND RAPIDS HARDWARE COMPANY
Inventor： DE BRUYN WILLIAM T , SPARKS BENJAMIN M
IPC: E06B3/44
CPC classification number: E06B3/44 , E06B3/4407 , E06B2003/4446
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