| 摘要 |
A ladder support for attachment to a first inclined ladder in order to support a second ladder extending upwardly therefrom which includes a base which is attached to the first ladder and bridges a plurality of rungs, a platform hinged at one end to the upper end of the base for supporting the second ladder and a strut assembly hinged to the lower end of the base and adjustably attached to the other end of the platform to hold the platform in a horizontal position.
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