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PORTABLE EXTENDIBLE CRANE WITH WORK BASKET

  • US 3,710,893 A
  • Filed: 06/21/1971
  • Issued: 01/16/1973
  • Est. Priority Date: 06/21/1971
  • Status: Expired due to Term
First Claim
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1. In combination a power boom, a ladder support on the boom, a ladder carried by said support, means secured to the end of the boom having spaced supports, a work basket pivoted at its top to and between said supports for relative angular orientation with respect to the boom, ladder means bridging said ladder and work basket including a first member pivotally connected to said basket at one end and a second member supported at one end at a fixed point adjacent to and within a step from the end rung of the ladder, and means connecting said members at their other ends to provide relative movement therebetween to vary the distance between their said one ends and accommodate relative angular orientation between said boom and basket.

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