Gordon Alexander Marshall

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Chamberwell, AU

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Patents Grantslast 30 patents

Information Patent Grant
Inertization system for highwall mining
- Patent number 5,997,100
- Issue date Dec 7, 1999
- The Broken Hill Proprietary Company Limited
- Gordon Alexander Marshall
- E21 - EARTH DRILLING MINING
Information Patent Grant
Inertization system for highwall mining
- Patent number 5,820,223
- Issue date Oct 13, 1998
- The Broken Hill Proprietary Company Limited
- Gordon Alexander Marshall
- E21 - EARTH DRILLING MINING
Information Patent Grant
Highwall mining system with driven conveyor units
- Patent number 5,609,397
- Issue date Mar 11, 1997
- The Broken Hill Proprietary Company Limited
- Gordon A. Marshall
- E21 - EARTH DRILLING MINING