Gysbert J. du Plessis

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Potchefstroom, ZA

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Patents Grantslast 30 patents

Information Patent Grant
Bottom discharge hopper rail car
- Patent number 4,669,392
- Issue date Jun 2, 1987
- Rotaque (Proprietary) Limited
- Gysbert J. du Plessis
- B61 - RAILWAYS
Information Patent Grant
Hoppers and bogies
- Patent number 4,633,785
- Issue date Jan 6, 1987
- Rotaque (Proprietary) Limited
- Gysbert J. du Plessis
- B61 - RAILWAYS