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Scale of displacement and dead-weight carrying

Gordon, A.M. (Glasgow) (1890-1900)

Mc Dermott’s Screw Propeller Computer

Taylor and Carpenter (Ithaca, N.Y.) (1902)

Planimetro polare

Unknown author (1900-1920)

Terna di planimetri a scure, unibili in un treno

Unknown author (1900-1920)

Macchina da calcolare automatica brevettata La Brunsviga [istruzioni]

Unknown author (Torino, Tip. Origlia, Festa e C., 1893)

Speed and Power Computer

Morton and Goudie’s (Glasgow) (1900-1910)

Description of the new contiuous reading integrator. Patent No. 21955/07

J. Halden & Co. Ltd (Newcastle on Tyne) (s. d.)

I Planimetri Coradi. Sistema Hohmann-Coradi e Lang-Coradi

Coradi, Gottlieb (Zurich) (Zurigo, Tipografia Aschmann & Scheller, Predigerplatz, 1908)

Les Planimètres Coradi. Systèmes Hohmann-Coradi et Lang-Coradi

Coradi, Gottlieb (Zurich) (Zurich, Imprimerie Aschmann & Scheller, 1904)

Strumenti matematici di precisione G.Coradi - illustrazioni

Unknown author

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