Lawrence E. Helwig

Follow

Person

Hampton Township, Allegheny County, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Silicate coated metal tying wire and process for coating said wire
- Patent number 4,246,317
- Issue date Jan 20, 1981
- United States Steel Corporation
- Lawrence E. Helwig
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for treating coated ferrous substrates
- Patent number 3,967,984
- Issue date Jul 6, 1976
- United States Steel Corporation
- Lawrence E. Helwig
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...