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Muirhead & Co., electrical engineers & contractors and manufacturers of electrical & telegraphic apparatus. (1893)
Muirhead & Co. · Muirhead & Co. · leaf 48
580. 1 j_ 9 9 9 Set of Shunts for Galvanometers, ^i^-, the resistance of the galvanometer coils,extra well insulated » • • r ■ # 4 15 0 f … 580. 581.—Set Of Shunts, P.O. pattern ... 586 » • • • * • 582. Sliding Shunts for large Marine Galva- nometers ■ * • • i • * * • • 583.—Concave Mirrors, light, :3 to i feet focus, for Reflecting Galvanometers, fromdiameter bo • • • 4 • * » • • . :st.—Mirror Slides for Marine Galvano- meter, each…Electrical Equipment · Lightning protection for structures · Lightning protection for buildings · Batteries · Lighting · Maintenance testing of electrical systems · Wiring devices
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