US PATENT SUBCLASS 238 / 213
.~.~ Base stiffeners

Current as of: June, 1999
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238 /   HD   RAILWAYS: SURFACE TRACK

151  DF  RAIL JOINTS {28}
209  DF  .~ Base plate {8}
213.~.~ Base stiffeners

DEFINITION

Classification: 238/213

Base-plates with girder-flanges or stiffening means.