US PATENT SUBCLASS 238 / 261
.~.~.~ Double and split keys


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



238 /   HD   RAILWAYS: SURFACE TRACK

151  DF  RAIL JOINTS {28}
243  DF  .~ Splice bars {18}
260  DF  .~.~ Fasteners {1}
261.~.~.~ Double and split keys


DEFINITION

Classification: 238/261

Special fastening for splice-bar bolts. The double keys are usually duplicates reversely arranged.