Johann Mey

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Patents Grantslast 30 patents

Information Patent Grant
Breaking or blasting or splitting of rock
- Patent number 6,318,272
- Issue date Nov 20, 2001
- Denel (Proprietary) Limited
- Johann Mey
- F42 - AMMUNITION BLASTING
Information Patent Grant
Breaking up of rock and the like
- Patent number 5,789,694
- Issue date Aug 4, 1998
- Denel (Proprietary) Limited
- Johann Mey
- F42 - AMMUNITION BLASTING
Information Patent Grant
Breaking up of rock and the like
- Patent number 5,670,737
- Issue date Sep 23, 1997
- Denel (Proprietary) Limited
- Johann Mey
- F42 - AMMUNITION BLASTING