发明名称 Anchoring device
摘要 An anchoring device for use on an access door having an outer framework adapted to be fitted in a rough opening formed in a ceiling or wall and having an exposed frame flange for hiding the rough opening, the anchoring device having a pressing member having the leading end urged to engage the ceiling or wall and forming a U-shaped bracket in cooperation with the web portion and frame flange of the outer framework and an anchor urging the pressing member into engagement with the framework.
申请公布号 US4139972(A) 申请公布日期 1979.02.20
申请号 US19770844817 申请日期 1977.10.25
申请人 NAKA, HIROMITSU 发明人 NAKA, HIROMITSU
分类号 E04B9/00;E04F19/08;E06B1/60;(IPC1-7):E06B3/00 主分类号 E04B9/00
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