72184577
Jan 14, 1964
Sep 1, 1964
Wear-Resisting Pieces Consisting of Cemented Hard Metallic Compositions-Namely, Inserts to Be Used in Dies and Tools for Working, Cutting, or Shaping Metal and Other Materials, for Dies, Cutting Tools, Bearing-Surface and Wearing-Surface Parts, Pump Valves which Embody Such Wear-Resisting Pieces, and as Structural Elements in Sundry Mechanical Equipment
Yarns and Threads