Douglas Wahren

Follow

Person

Karlstad, SE

People

Patents Grantslast 30 patents

Information Patent Grant
Methods and apparatus for the rapid consolidation of moist porous webs
- Patent number 4,324,613
- Issue date Apr 13, 1982
- Douglas Wahren
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Suspension device for a headbox for paper and pulp machines
- Patent number 4,240,872
- Issue date Dec 23, 1980
- AB Karlstads Mekaniska Werkstad
- Douglas Wahren
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Two-sided drainage in a roll-type twin-wire former
- Patent number 4,209,360
- Issue date Jun 24, 1980
- AB Karlstads Mekaniska Werkstad
- Erik G. Stenberg
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and apparatus for forming a fibrous web
- Patent number 4,100,018
- Issue date Jul 11, 1978
- Aktiebolaget Karlstads Mekaniska Werkstad
- Douglas Wahren
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE