Hartmut Ewald

Follow

Person

Kroepelin, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method and device for extracting fumes and heat and for providing o...
- Patent number 6,478,672
- Issue date Nov 12, 2002
- Deus Energie-und Umweltsysteme GmbH
- Hartmut Ewald
- A62 - LIFE-SAVING FIRE-FIGHTING