Pwllbach Colliery. Investigation of the Effect of a B.J.D. Anderton 36” Bi-Directional Spiral Vane Disc on the Yield of Sized Products (779/63/9) May 1963

This material is held atWest Glamorgan Archive Service

  • Reference
    • GB 216 D/D PRO/NCB/6/1007
  • Dates of Creation
    • May 1963
  • Language of Material
    • English
  • Physical Description
    • 1 file