Muirhead & Co., electrical engineers & contractors and manufacturers of electrical & telegraphic apparatus. (1893)
Muirhead & Co. · Muirhead & Co. · leaf 36
ditto, in two coils ... *> • » 427,— Ditto, 250,000 ohms, in fiv< subdivision • Ditto, 1 megohm, in five sub-divisions, platinumsill er alloy w ire 129.—Ditto, ditto in platinoid wire - - a • * « ■ Portable Testing Set, for Electric Light and otliir installations, Sliding Kesistances 1to 100… … 4:32. All Standard Resistances, unless otherwise ordered, will be adjusted to the B.A. ohm. i
Electrical Equipment · Lightning protection for structures · Lightning protection for buildings · Batteries · Lighting · Maintenance testing of electrical systems · Wiring devices
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