Ragnar Hardmark

Follow

Person

Linkoping, SE

People

Patents Grantslast 30 patents

Information Patent Grant
Anti-skid device
- Patent number 4,732,239
- Issue date Mar 22, 1988
- Onspot AB
- Ragnar M. Hardmark
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Anti-skid device for motor vehicles
- Patent number 4,621,712
- Issue date Nov 11, 1986
- Onspot AB
- Ragnar Hardmark
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus for measuring the evenness of a road surface
- Patent number 4,328,622
- Issue date May 11, 1982
- Saab-Scania Aktiebolag
- Ragnar M. Hardmark
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for measuring the action of forces between wheeled vehicl...
- Patent number 4,212,063
- Issue date Jul 8, 1980
- Saab-Scania Aktiebolag
- Ragnar M. Hardmark
- G01 - MEASURING TESTING
Information Patent Grant
Roadway friction measuring method and apparatus
- Patent number 4,098,111
- Issue date Jul 4, 1978
- Saab-Scania Aktiebolag
- Ragnar Malcus Hardmark
- G01 - MEASURING TESTING