Leif A. B. Bjorkman

Follow

Person

Stockholm, SE

People

Patents Grantslast 30 patents

Information Patent Grant
Method of retreading vehicle tires using microwave heating
- Patent number 4,157,930
- Issue date Jun 12, 1979
- Elektra Regummeringsteknik Aktiebolag
- Leif A. B. Bjorkman
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL