Radar / American Telephone and Telegraph Co. IT&T : electronics and telecommunication Telephone central office set TC-10 - USA Voorschrift, Technical Manual, 11-338 Local-battery telephone equipment - USA Voorschrift, Technical Manual, 11-457 Portable military L.B. set / [uitgave van] Bell telephone MFG. co. Antwerp Ontwerp-voorschrift voor de veldtelefoon (The soundpowered-telephone) - Koninklijke Landmacht Ontwerp-Voorschrift, No. 925 Telephone central office set TC-12 - USA Voorschrift, Technical Manual, 11-336 Telephone central office set TC-2 - USA Voorschrift, Technical Manual, 11-340 Common-battery telephone equipment - USA Voorschrift, Technical Manual, 11-458 Principles of long distance telephone and telegraph transmission - USA Voorschrift, Technical Manual, 11-475 Telephone repeater EE-89-A - USA Voorschrift, Technical Manual, 11-2006 Installation of the first direct telecommunications link between the Netherlands and Denmark by means of repeatered submarine coaxial cable 1951 / Standard Telephones and Cables …
