发明名称 ACCESS-LIMITING BAR FOR DOORWAYS
摘要 A locking bar for use behind a closed door to prevent passage through the doorway. The locking bar includes a slot-and-pivot-pin combination to hold the bar securely in a vertical position when the locking function is not desired.
申请公布号 US2012326457(A1) 申请公布日期 2012.12.27
申请号 US201113237079 申请日期 2011.09.20
申请人 MEAD DONALD 发明人 MEAD DONALD
分类号 E05C19/00;B23P11/00 主分类号 E05C19/00
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