Edmund Victor Owen John

Follow

Person

Johannesburg, ZA

People

Patents Grantslast 30 patents

Information Patent Grant
Process for treating a liquid reactive medium
- Patent number 5,766,477
- Issue date Jun 16, 1998
- African Oxygen Limited
- Edmund Victor Owen John
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE