77918949
Jan 25, 2010
May 8, 2012
Construction elements not made of metal, namely, earth stabilizing supports and supports in the form of straps, all made of rubber with embedded metal reinforcing fibers, for use in underground reinforcement of retaining walls, slopes and embankments, the foregoing for use by local, state, and federal highway and transportation departments, construction contractors and land developers
Nonmetallic Building Materials