80. Turing (Alan).- National Research Development Corporation. Acoustic Delay Lines, Complete Patent Specification 694,679, 1 plate, 1953; Improvements in or relating to Electronic Digital Computing Engines, Complete Patent Specification 718,895, folding circuit diagram, ink stamp on first p., 1954; Perfectionnements aux machines à calculer électroniques purement numériques, Complete French Patent Specification 1,047,715, 3 folding circuit diagrams, Paris, 1953, disbound, small folio (3)
est. £8000 – £10000
A series of important patents relating to invention by Turing or Turing, Donald Watts Davies & Michael Woodger.
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