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    • 7. 发明授权
    • Retractable bird deterring device
    • 伸缩式防鸟装置
    • US5713160A
    • 1998-02-03
    • US677683
    • 1996-07-08
    • Harold G. Heron
    • Harold G. Heron
    • A01M29/32E04D13/00E04B1/72
    • A01M29/32E04D13/004Y10S119/903
    • A retractable device for deterring birds from landing, roosting or nesting on a surface of a building structure, the device including at least two holding mechanisms each having a mounting member to be attached to the building structure and an arm for securing wire between the wire holding mechanisms, the arms being pivotally connected at respective pivots to the mounting members and being selectively pivotable to an operational protracted position in which the arms and wire lie above the surface of the building structure and to a non-operational retracted position in which the arms and wire lie below the surface of the building structure.
    • 一种用于阻止鸟类在建筑结构的表面上着陆,栖息或嵌套的可伸缩装置,该装置包括至少两个保持机构,每个保持机构具有要附接到建筑结构的安装构件,以及用于将线固定在电线保持件 机构,臂以相应的枢轴枢转地连接到安装构件并且可选择性地枢转到操作延伸位置,其中臂和线位于建筑物结构的表面上方并且处于非操作的缩回位置,在该位置中, 电线位于建筑物结构的表面下方。