US PATENT SUBCLASS 212 / 176
.~ Of sectional vertical support for boom


Current as of: June, 1999
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212 /   HD   TRAVERSING HOISTS

175  DF  HAVING MEANS FACILITATING ASSEMBLY OR DISASSEMBLY {4}
176.~ Of sectional vertical support for boom


DEFINITION

Classification: 212/176

Of sectional vertical support from boom:

(under subclass 175) Apparatus including an elongated vertically disposed boom* support comprising a plurality of serially arranged segments connected longitudinally in end-to-end fashion, and wherein the connections between the segments permit the ready assembly or disassembly of one segment to or from another.

SEE OR SEARCH THIS CLASS, SUBCLASS:

199+, for climbing cranes wherein the vertical support comprises a building being erected by the crane.