John D. Thorpe

Follow

Person

Sheffield, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Pick and the combination of a pick and holder
- Patent number 4,650,253
- Issue date Mar 17, 1987
- Padley & Venables, Ltd.
- Raymond J. Clemmow
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mineral mining pick and holder assembly
- Patent number 4,583,786
- Issue date Apr 22, 1986
- Padley & Venables Limited
- John D. Thorpe
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pick and the combination of a pick and holder
- Patent number 4,573,744
- Issue date Mar 4, 1986
- Padley & Venables Limited
- Raymond J. Clemmow
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pick and the combination of a pick and holder
- Patent number 4,488,758
- Issue date Dec 18, 1984
- Padley & Venables Limited
- Raymond J. Clemmow
- E21 - EARTH DRILLING MINING