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Title: 10-point 3-level minor switch, for dialled digit storage (19 [Go to resource]
Description: 10-point 3-level minor switch, for dialled digit storage (1925) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1925 Source: Science Museum Identifier: 1970-533 Go to resource More Like this...-
Impulse regenerator; this purely electromechanical…Impulse regenerator; this purely electromechanical…
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