Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Patent specification
Provisional Specification. Improvements in Flying-machines. No. 9635. Date of application, 23rd April 1909, Complete specification left, 23rd Nov. 1909 - accepted, 10th March 1910. Patent applied for by Isaac Henry Storey of Ambleside, Westmoreland. 4 pages with two fold out diagram containing eight figures.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.