Helmut Ruff

Follow

Person

Kitchener, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Chairlift with positioning carriage and swivel mechanism with safet...
- Patent number 5,533,594
- Issue date Jul 9, 1996
- Ricon Corporation
- Jules M. Tremblay
- B66 - HOISTING LIFTING HAULING