US PATENT SUBCLASS 248 / 161
.~.~ Adjustable vertically

Current as of: June, 1999
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248 /   HD   SUPPORTS

127  DF  STAND {14}
158  DF  .~ Standard type {4}
161.~.~ Adjustable vertically {6}
162.1  DF  .~.~.~> Counterbalanced
404  DF  .~.~.~> With force multiplying means {1}
407  DF  .~.~.~> Notch or cavity engaging latch {1}
410  DF  .~.~.~> Canted clutch collar
411  DF  .~.~.~> Settable clamp {2}
414  DF  .~.~.~> Constant friction brake

DEFINITION

Classification: 248/161

(under subclass 158) Devices in which the standard is adjustable in a vertical direction usually telescopically.

SEE OR SEARCH THIS CLASS, SUBCLASS:

157+, for a vertically adjustable nonstandard type stool or stand.

SEE OR SEARCH CLASS

285, Pipe Joints or Couplings,

145.1+, for a telescopic joint in serial diverse relatively movable joints, and subclasses 298+ for a variable length coupling comprising significant internal wall structure of at least one of the tubular bodies being joined.

403, Joints and Connections, 104+, for articulated members lockable in a selected position.