Patent Nut and Bolt Company
Took over the running of Cwmbran Colliery in 1872 and in 1879 drove the Cwmbran Adit a mile down the valley at a lower level, which became the colliery's main entrance and coal delivery point.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Cwmbran Colliery | Torfaen | 1872–1902 |
Record created: 10 September 2026 · Last researched: 10 September 2026