US PATENT SUBCLASS 238 / 146
.~.~ Integral grooved base

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

122  DF  RAILS {20}
143  DF  .~ Detachable head {4}
146.~.~ Integral grooved base

DEFINITION

Classification: 238/146

Compound rails, the base portions being grooved for the reception of the upper portions of the rails.