Door lock
    7.
    发明授权
    Door lock 失效
    门锁

    公开(公告)号:US3918121A

    公开(公告)日:1975-11-11

    申请号:US38997873

    申请日:1973-08-20

    申请人: WILLIAMS JOHN R

    发明人: WILLIAMS JOHN R

    IPC分类号: E05D11/10 E05D9/00 E05D11/06

    摘要: A door lock adapted to fit over the door hinge and clamp the hinge plates to prevent pivotal movement of the plates about the hinge pin to prevent opening of the door.

    摘要翻译: 门锁适于装配在门铰链上并夹紧铰链板,以防止板绕铰链销的枢转运动,以防止门的打开。