TREA

Elmer B. Phelps

Follow

Person

  • Creve Coeru, IL, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Dampener for impacting mechanism
    • Patent number 4,867,253
    • Issue date Sep 19, 1989
    • Caterpillar Inc.
    • Larry G. Eftefield
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Impacting mechanism
    • Patent number 4,852,662
    • Issue date Aug 1, 1989
    • Caterpillar Inc.
    • Raymond A. Bianchi
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES