US PATENT SUBCLASS 238 / 57
.~.~.~ I-beam
Current as of: June, 1999
Click HD for Main Headings
Click for All Classes
DEFINITION
Classification: 238/57
Ties made up of pairs of I-beams.
SEE OR SEARCH CLASS
428, Stock Material or Miscellaneous Articles,
598, for metallic stock of "T" or "I" cross-section.