Robert Helfman

Follow

Person

Franklin, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Modular building structure and method
- Patent number 4,744,182
- Issue date May 17, 1988
- Trus-Us, Inc.
- Sheldon Shacket
- E04 - BUILDING
Information Patent Grant
Single story house addition structure and method
- Patent number 4,631,893
- Issue date Dec 30, 1986
- Trus-Us Inc.
- Sheldon Shacket
- E04 - BUILDING
Information Patent Grant
Dormer structure and method
- Patent number 4,480,420
- Issue date Nov 6, 1984
- Trus-Us, Inc.
- Sheldon Shacket
- E04 - BUILDING
Information Patent Grant
Dormer structure and method
- Patent number 4,449,334
- Issue date May 22, 1984
- Trus-Us, Inc.
- Sheldon Shacket
- E04 - BUILDING