作者: Richard J. Gardner , Karl J. Schaefer
DOI:
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摘要: Ladder support apparatus and methods are disclosed. In one embodiment, a method includes positioning ladder having first second pairs of legs in an operating position suitable for supporting user. A assembly clampably coupled to the ladder, including at least elongated member extending between respective being by coupling assemblies positioned spaced-apart positions on member. The is supported with on, example, non-uniform surface.