US PATENT SUBCLASS 188 / 219.1
.~ Beams or beam assemblies

Current as of: June, 1999
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188 /   HD   BRAKES

*  DD  ELEMENTS {6}
219.1.~ Beams or beam assemblies {6}
219.6  DF  .~.~> With movable, reversible or adjustable heads {1}
222.1  DF  .~.~> With fixed head or thrust block {2}
225.6  DF  .~.~> Trussed beam {4}
231  DF  .~.~> With fulcrum {2}
233.3  DF  .~.~> With guides and/or guards
233.7  DF  .~.~> H, I, L, T, U, V, or X cross section beam

DEFINITION

Classification: 188/219.1

(under the class definition) Devices which carry the brake shoes and heads, and through which the thrust is transmitted to the shoes, either claimed, per se, or in combination with heads, shoes, fulcrums, guides and/or guards.