Boilers, Their Construction and Strength - A Handbook of Rules, Formulae, Tables, &C., Relative to Material, Scantlings and Pressures, Safety Valves, Springs, Fittings and Mountings, Etc., Etc.; For the Use of Engineers, Surveyors, Dra... #269757 9,85€
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National Electrical Code Installation Rules (Except Marine Work) Of the National Board of Fire Underwriters for Electric Wiring and Apparatus, as Recommended by the Underwriters National Electric Association #266548 6,85€
A History of Wireless Telegraphy - Including Some Bare-Wire Proposals for Subaqueous Telegraphs #265640 8,85€