- Back
-
Title: Pair of telephone relays in wooden case, S [Go to resource]
Description: Pair of telephone relays in wooden case, S.G. Brown, 4 Great Winchester Street, Patent No. j27953-1911 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1972-395 Go to resource More Like this...
[Edit] - Back