US PATENT SUBCLASS 104 / 142
.~ Yokes

Current as of: June, 1999
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104 /   HD   RAILWAYS

140  DF  SLOTTED CONDUIT {4}
142.~ Yokes {2}
143  DF  .~.~> Concrete
144  DF  .~.~> Integral metallic

DEFINITION

Classification: 104/142

(under subclass 140) Apparatus comprising transverse yoke or U-beam structure for support of the track-rails and a slotted conduit.

(1) Note. This subclass is largely composed of built-up rolled and cast sectional yokes.