Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Improvements Incandescent Gas Burners, patent
Patent. No.210020 James Wilfrid Fisk. Improvements connected with incadescent gas burners.
Four pages printed in black ink on cream headed paper with seal.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.