Muirhead & Co., electrical engineers & contractors and manufacturers of electrical & telegraphic apparatus. (1893)
Muirhead & Co. · Muirhead & Co. · leaf 40
40*.4G9. Ditto, Pu^gendorfFs t * » » t • 7 10 0 Ditto, B.A. pattern, with proportional coils.complete, for measuring and comparingresistances ... ... ... ... from 9 9 0 470 Wheatstone Bridge, similar to No. 400, with wire wound on marble cylinder 475.—Set of Slide Resistance Coils, Thomson and… … 47G.— I Utto, Muirheads 475. Patent, with four dial a from £28 to 31 10 0
Electrical Equipment · Lightning protection for structures · Lightning protection for buildings · Batteries · Lighting · Maintenance testing of electrical systems · Wiring devices
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