Patent

Patent:CA356931 31.03.1936 Turck, Joseph Abraham Valentine (P) Felt und Tarrant (P) Felt & Tarrant Manif. Co. : Calculating machine idle lock
Patent:CA356932 31.03.1936 Turck, Joseph Abraham Valentine (P) Felt und Tarrant (P) Felt & Tarrant Manif. Co. : Calculating machine keyboard
Patent:CA358892 07.07.1936 Giuseppe Campana : Totalizer for cash registers
Patent:CA361244 20.10.1936 Turck, Joseph Abraham Valentine (P) Felt und Tarrant (P) Felt & Tarrant Manif. Co. : Calculating machine
Patent:CA361971 24.11.1936 Boutet, René Edmond : Electric calculating machine
Patent:CA362268 01.12.1936 Avery, Harold (P) Marchant (P) Calculating Machine Comp. : Calculating machine
Patent:CA362513 15.12.1936 Ball, William (P) : Calculating machine
Patent:CA362514 15.12.1936 Ball, William (P) : Calculating machine
Patent:CA362515 15.12.1936 Ball, William (P) : Calculating machine printing mechanism

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