TREA

Sylvester J. Liebrecht Jr.

Follow

Person

  • Continental, OH, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Trencher plow for laying pipe
    • Patent number 6,299,381
    • Issue date Oct 9, 2001
    • Sylvester J. Liebrecht
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Rotating disk-type ditcher
    • Patent number 5,511,326
    • Issue date Apr 30, 1996
    • Sylvester J. Liebrecht
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Rotating disk type ditcher
    • Patent number 5,113,610
    • Issue date May 19, 1992
    • Sylvester Liebrecht
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING