Joseph Cornelius Visagie

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Westonaria, ZA

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Patents Grantslast 30 patents

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Mine support
- Patent number 7,909,542
- Issue date Mar 22, 2011
- Grinaka-LTA Limited
- Nico Erasmus
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Mine support
- Publication number 20070092344
- Publication date Apr 26, 2007
- Nico Erasmus
- E21 - EARTH DRILLING MINING