Aeronautical Engineering 526 August 6, 191c, (Supplement to The Aeroplane.) … "SPEEDICUT" HIGH-SPEED TWIST DRILLS MILLING CUTTERS. REAMERS. SLITTING SAWS. THOS. FIRTH & SONS, LTD. SHEFFIELD. GWYNNES LIMITED. CONTRACTORS TO H.M. GOVERNMENT MANUFACTURERS AND SOLE LICENSEES IN THE BRITISH EMPIRE CLERGET" PATENT AERO ENGINES ENGINEERS. LONDON. '9WYNNE LONDON." KINDLY MENTION…
Aeronautics -- Periodicals
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