Klaus Grabbe

Follow

Person

D-3300 Braunschweig, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus for the biological treatment of substances and/or mixture...
- Patent number 5,869,327
- Issue date Feb 9, 1999
- Klaus Grabbe
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Composting unit having a ventilation system for closed rotting units
- Patent number 5,693,528
- Issue date Dec 2, 1997
- Klaus Grabbe
- C05 - FERTILISERS MANUFACTURE THEREOF