Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Patent specification
Draft of Claims re improved cast ingot mould patent. Typed on white paper.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.
Amgueddfa Cymru
Draft of Claims re improved cast ingot mould patent. Typed on white paper.