Friedrich W. Herfeld

Follow

Person

Neuenrade, DT

People

Patents Grantslast 30 patents

Information Patent Grant
Continuous mixing apparatus, especially cooling mixer and a method...
- Patent number 4,061,275
- Issue date Dec 6, 1977
- Friedrich Walter Herfeld
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Apparatus for mixing powdery or granulated materials
- Patent number 4,002,325
- Issue date Jan 11, 1977
- Friedrich W. Herfeld
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL