Gerhard Pfaff

Follow

Person

Stuttgart, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Screw-type extruder having a starting valve and throttle
- Patent number 4,984,977
- Issue date Jan 15, 1991
- Werner & Pfleiderer, GmbH
- Albert Grimminger
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method and extractor device for separating worm elements of an extr...
- Patent number 4,754,539
- Issue date Jul 5, 1988
- Werner & Pfleiderer GmbH
- Arno Knoll
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL