Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Patent specification
Provisional Specification. Improvements in Aeroplanes or Flying-machines. No. 2421. Date of application, 29th Jan. 1914, Complete specification left, 31st Aug. 1914 - accepted, 6th May 1915. Patent applied for by Charles Horace Watkins of 45 Colum Road, Cardiff. Four pages with two fold out diagrams containing five figures.
Pwnc
Diwydiant
Rhif yr Eitem
2001.203/1
Derbyniad
Donation, 13/11/2001
Mesuriadau
Meithder
(mm): 282
Lled
(mm): 193
Deunydd
papur
Lleoliad
In store
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