Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Senghenydd and the Intrinsically Safe Circuit (article)
Jones, E.W.P.
(author)
Paper presented by E.W.P. Jones C.Eng MIEE at the Institution of Electrical Engineers 'History of Technology' Meeting, University College Swansea, 7-9 July 1989. 15 pages including diagrams and graphs.
Pwnc
Diwydiant
Rhif yr Eitem
2017.38/575
Historical Associations
Association Type: Colliery
Lle: Universal Colliery
Creu/Cynhyrchu
Derbyniad
old stock, 27/2/2017
Mesuriadau
Meithder
(mm): 298
Lled
(mm): 212
Deunydd
papur
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