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
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- Bookmark:http://archiveshub.jisc.ac.uk/data/gb216-d/dpro/ncb6/d/dpro/ncb/6/1007
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- ReferenceGB 216 D/D PRO/NCB/6/1007
- Dates of CreationMay 1963
- Language of MaterialEnglish
- Physical Description1 file