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3 résultats pour : cooke and wheatstone telegraph

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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...

Cooke and Wheatstone's five-needle telegraph
ARP07103_460000445

Cooke and Wheatstone's five-needle telegraph

Diagram of Cooke and Wheatstone's five-needle telegraph
ARP07103_460000446

Diagram of Cooke and Wheatstone's five-needle tele...