John F. Lehman

Follow

Person

Canfield, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Post and anchoring device
- Patent number 5,076,032
- Issue date Dec 31, 1991
- Steel City Corporation
- John F. Lehman
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Post anchor device
- Patent number 4,644,713
- Issue date Feb 24, 1987
- The Steel City Corporation
- John F. Lehman
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING