Geoffrey M. Simpson

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Bulwell, GB

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Patents Grantslast 30 patents

Information Patent Grant
Non-disruptive detonating cord
- Patent number 4,991,511
- Issue date Feb 12, 1991
- Haley & Weller Limited
- Geoffrey M. Simpson
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Pyrotechnic assembly
- Patent number 4,791,870
- Issue date Dec 20, 1988
- Haley & Weller Limited
- Geoffrey M. Simpson
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Pyrotechnic composition for producing radiation-blocking screen
- Patent number 4,728,375
- Issue date Mar 1, 1988
- Haley & Weller Limited
- Geoffrey M. Simpson
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Pyrotechnic or explosive device
- Patent number 4,617,866
- Issue date Oct 21, 1986
- Haley & Weller Limited
- Geoffrey M. Simpson
- F42 - AMMUNITION BLASTING