Rudolph F. Wiatr

Follow

Person

Chicago, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Railway tie collar system
- Patent number 5,402,942
- Issue date Apr 4, 1995
- Tie Collar, Ltd.
- Rudolph F. Wiatr
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Railway tie collar
- Patent number 4,121,766
- Issue date Oct 24, 1978
- Rudolph F. Wiatr
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES