GB305579A
(enrdf_load_stackoverflow )
US2087182A
(en )
1937-07-13
Listing adding machine
GB250612A
(enrdf_load_stackoverflow )
GB191027151A
(en )
1911-09-28
Improvements in Calculating Machines.
GB628636A
(enrdf_load_stackoverflow )
GB420807A
(enrdf_load_stackoverflow )
1900-01-01
US1647529A
(en )
1927-11-01
Total and subtotal mechanism
US3003686A
(en )
1961-10-10
Clear sign printing means for an accounting machine having true negative totalization
GB190828253A
(en )
1909-12-28
Improvements in and relating to Mechanical Calculators.
GB416498A
(enrdf_load_stackoverflow )
GB483093A
(enrdf_load_stackoverflow )
US1965192A
(en )
1934-07-03
Cash register
GB497640A
(enrdf_load_stackoverflow )
GB344393A
(enrdf_load_stackoverflow )
GB474938A
(enrdf_load_stackoverflow )
GB509042A
(enrdf_load_stackoverflow )
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB285885A
(enrdf_load_stackoverflow )
GB749504A
(enrdf_load_stackoverflow )
GB518840A
(enrdf_load_stackoverflow )
GB191403083A
(en )
1915-02-05
Improvements in Adding Machines.
GB138077A
(enrdf_load_stackoverflow )
GB241213A
(enrdf_load_stackoverflow )
GB394999A
(enrdf_load_stackoverflow )
GB205870A
(en )
1923-10-24
Improvements in or relating to calculating machines