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15 results for: communication system

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A train dispatcher using a Morse key to send a message down the line on the railway telegraph system
ARP23A18_139

A train dispatcher using a Morse key to send a mes...

Sir Martin Ryle
ARP23A12_130

Sir Martin Ryle

The pneumatic dispatch which the General Post Office used to transport parcels under London
ARP23A15_343

The pneumatic dispatch which the General Post Offi...

Illustration of the 'Cooke and Wheatstone Telegraph' an early electrical telegraph system created by William Fothergill Cooke
ARP23A12_319

Illustration of the 'Cooke and Wheatstone Telegrap...

Photograph of the Elliott-Automation's new gas laser for teaching and research purposes, is also suitable for a wide range of applications in new communications systems
ARP23A16_041

Photograph of the Elliott-Automation's new gas las...

Photograph of a tank being used during World War Two
ARP18A27_389

Photograph of a tank being used during World War T...

Aerial Telegraph
ARP15A00_403

Aerial Telegraph

Aerial Telegraph
ARP15A00_402

Aerial Telegraph

Paying for letter delivery
ARP07108_0460001649

Paying for letter delivery

Aerial Telegraph
ARP07110_46000482

Aerial Telegraph

Aerial Telegraph
ARP07110_46000483

Aerial Telegraph

Telephone: man on left is making call
ARP07103_460000364

Telephone: man on left is making call

Alexander Glen's facsimile telegraph system
ARP07103_460000375

Alexander Glen's facsimile telegraph system

Facsimle or copying telegraph system
ARP07103_460000376

Facsimle or copying telegraph system

John Logie Baird
ARP07096_390001848

John Logie Baird