Onni Koistinen

Follow

Person

Imatra, SF

People

Patents Grantslast 30 patents

Information Patent Grant
Biofilter
- Patent number 4,086,167
- Issue date Apr 25, 1978
- Enso-Gutzeit Osakeyhtio
- Esko Tapola
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE