ORIGINAL PRINTED PATENT APPLICATION NUMBER 21,803 FOR IMPROVED MEANS FOR AUTOMATICALLY CONTROLLING THE REVERSAL OF ELECTRICALLY DRIVEN MACHINE TOOLS. (1909)..(THE INVENTORS WORKS AT PARKHJEAD FORGE ROLLING MILLS AND STEEL WORKS, GLASGOW).
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Book Details
PublisherHMSO
ISBN / ASINB000HJN92U
ISBN-13978B000HJN927
Sales Rank99,999,999
MarketplaceUnited States 🇺🇸