Robert H. Spensley

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Swanwick, GB

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Patents Grantslast 30 patents

Information Patent Grant
Cartridge for use in anchor bolting
- Patent number 4,558,781
- Issue date Dec 17, 1985
- Societe Anonyme d'Explosifs et de Produits Chimiques
- John M. Murphy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Reactivatable set-inhibited cementitious compositions
- Patent number 4,455,171
- Issue date Jun 19, 1984
- Societe Anonyme d'Explosifs et de Produits Chimiques
- Robert H. Spensley
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Cartridge for use in anchor bolting
- Patent number 4,399,911
- Issue date Aug 23, 1983
- Societe Anonyme d'Explosifs et de Produits Chimiques
- John M. Murphy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cartridge for use in anchor bolting
- Patent number 4,395,162
- Issue date Jul 26, 1983
- Societe Anonyme d'Explosifs et de Produits Chimiques
- John M. Murphy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cartridge for rock-bolting
- Patent number 4,338,048
- Issue date Jul 6, 1982
- Exchem Holdings Limited
- John M. Murphy
- E21 - EARTH DRILLING MINING