Hermanus Q. Van der Westhuizen

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Pretoria, ZA

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Patents Grantslast 30 patents

Information Patent Grant
Barrel for rock breaking tool and method of use
- Patent number 4,900,092
- Issue date Feb 13, 1990
- Boutade Worldwide Investments NV
- Hermanus Q. Van der Westhuizen
- F42 - AMMUNITION BLASTING
Information Patent Grant
Mat for use with rock breaking tool
- Patent number 4,829,900
- Issue date May 16, 1989
- Boutade Worldwide Investments NV
- Hermanus Q. Van der Westhuizen
- F42 - AMMUNITION BLASTING