Charles Alexander. (inventor). Stevenson

Charles Alexander. (inventor). Stevenson's books

ORIGINAL PRINTED PATENT APPLICATION NUMBER 22,847 FOR APPARATUS FOR SUBMARINE SIGNALLING. (1909)..(THE INVENTOR LIVED IN DOUGLAS CRESCENT, EDINBURGH). cover image

ORIGINAL PRINTED PATENT APPLICATION NUMBER 22,847 FOR APPARATUS FOR SUBMARINE SIGNALLING. (1909)..(THE INVENTOR LIVED IN DOUGLAS CRESCENT, EDINBURGH).

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