Johan David Raal

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Kwa Zulu Natal, ZA

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Patents Grantslast 30 patents

Information Patent Grant
Preparation of standard gas mixtures
- Patent number 6,394,641
- Issue date May 28, 2002
- Technology Finance Corporation (PTY), Ltd.
- Johan David Raal
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Preparation of standard gas mixtures two
- Publication number 20010029839
- Publication date Oct 18, 2001
- Technology Finance Corporation (PTY) , Ltd.
- Johan David Raal
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL