Illustrated catalogue and price list of bells, electric gas burners, batteries, push buttons ... (1899)
Novelty Electric Company · Novelty Electric Company · leaf 68
60, 52 & 54 NORTH FOURTH STREET, PHILADELPHIA, PA. 67 TELEGRAPH INSTRUMENTS, ETC-Continued Main Line Relays … 1250 ohms resistance, Silk Covered Wire, Polished Rubber Covered Coils, Mahogany Base Mounted on Ornamental Surbase, Extension Adjustment. In addition to the excellent merits of these Relays in all the usual details of construction and rinish, their especial advantage consists in the armature and…
Electricity · Wiring devices · Telephones
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.
