Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Patent specification
Draft patent Specification titled - Centrifugal Force as a Factor (In the Manufacture of Steel by the Oxygen Lance.). Typed on the reverse of old letter from The Cross Foundry & Engineering Co. Ltd. Undated.
Pwnc
Diwydiant
Rhif yr Eitem
2005.149/30
Derbyniad
Purchase, 12/12/2005
Mesuriadau
Meithder (mm): 253
Lled (mm): 204
Deunydd
papur
Lleoliad
In store
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