Archelaius Dawson Allen

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Leyland, EN

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Patents Grantslast 30 patents

Information Patent Grant
Mine roof supports
- Patent number 4,062,194
- Issue date Dec 13, 1977
- Gullick Dobson Limited
- Archelaius Dawson Allen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof supports
- Patent number 4,041,714
- Issue date Aug 16, 1977
- Gullick Dobson Limited
- Archelaius Dawson Allen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof supports
- Patent number 3,991,580
- Issue date Nov 16, 1976
- Gullick Dobson Limited
- Archelaius Dawson Allen
- E21 - EARTH DRILLING MINING