- Back
-
Title: Electrical deaf-aid by S.G. Brown Magniphone, c. 1912. [Go to resource]
Description: Electrical deaf-aid by S.G. Brown Magniphone, c. 1912. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1912 Source: Science Museum Creator: Brown, S.G. (maker) Identifier: 1948-370 Go to resource More Like this...
[Edit] - Back