GB156279A
(enrdf_load_stackoverflow )
US2985364A
(en )
1961-05-23
Calculating machines adapted for tape recording
US1947512A
(en )
1934-02-20
Automatic signal for adding machines
US1270855A
(en )
1918-07-02
Adding-machine.
GB608988A
(enrdf_load_stackoverflow )
GB191403084A
(en )
1915-02-04
Improvements in Adding Machines.
US2805822A
(en )
1957-09-10
Totalizer controlling mechanism for accounting machines
GB693657A
(en )
1953-07-01
Calculating machines
GB215746A
(en )
1925-08-04
Improvements in cash registers and like machines
GB191311823A
(en )
1914-03-05
Improvements in and relating to Adding and Listing Machines.
GB416498A
(enrdf_load_stackoverflow )
GB191309877A
(en )
1914-04-23
Improvements in Registering Mechanism for Cash Registers, Calculating Machines and Registering and the like Apparatus.
GB191219273A
(en )
1913-03-13
Improvements in the Keyboards and Connecting Members of Calculating Machines.
GB409101A
(enrdf_load_stackoverflow )
GB394999A
(enrdf_load_stackoverflow )
GB154248A
(en )
1920-11-29
Improvements in and relating to calculating machines
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB344040A
(enrdf_load_stackoverflow )
GB205870A
(en )
1923-10-24
Improvements in or relating to calculating machines
GB459812A
(enrdf_load_stackoverflow )
GB295632A
(enrdf_load_stackoverflow )
GB191119694A
(en )
1912-09-04
Adding and Computing Machine.
GB228184A
(enrdf_load_stackoverflow )
GB190929891A
(en )
1910-03-29
Improvements in and relating to Mechanical Calculators.
GB813083A
(en )
1959-05-06
Calculating machines or similar accounting machines