Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 167
he first;namely, twenty-nine seconds, one space, twenty-five seconds, 2,260 HAWKINS ELECTRICITY and five dot spaces for each minute. Then for the minute pre-ceding noon time twenty-nine seconds, one space, then twenty-seconds and ten dot spaces and then one long dash, correspondingto the final… … iifflWfii
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
