Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 348
Figs. 15 and 16. Square andRound Punches Figs. 17 and 18. Cold and Hot Cutters Courtesy of Vaughan and Bushnell Manufacturing Com^-~<i equipment here men-tioned will also be re-quired for Welding byany other method anda well-equipped shop is generally a good investment. On theother hand, it is…
Electrical engineering
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