Muirhead & Co., electrical engineers & contractors and manufacturers of electrical & telegraphic apparatus. (1893)
Muirhead & Co. · Muirhead & Co. · leaf 23
■ -la: ■ v-v 16 ARTIFICIAL LINE FOR DUPLEX TELEGRAPHY. L.I I 169.—Condensers, for use with telephone trans-mitters from 1S Condensers made to order, of whatever capacity and sub-division required. Dr. Muirheads Certificate is sent with all Standard Condensers. ARTIFICIAL LINE FOR DUPLEX TELEGRAPHY.… … 170. Ditto, with double conductor for duplex-balancingin cases of multiple-cored cables (two or more cores inside same sheathing) ... 172.— Varleys Artificial Line, as supplied to the Anglo-American Telegraph Com] v, Limited 17 3.—Artificial Lines for Educational pur-poses, made to any…
Electrical Equipment · Lightning protection for structures · Lightning protection for buildings · Batteries · Lighting · Maintenance testing of electrical systems · Wiring devices
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