US2821342A
(en )
1958-01-28
Capellaro
GB760381A
(enrdf_load_stackoverflow )
US2087182A
(en )
1937-07-13
Listing adding machine
US3018044A
(en )
1962-01-23
anderson
US2987245A
(en )
1961-06-06
Crossfooter clear signaling mechanism
US2570931A
(en )
1951-10-09
Printing tabulating mechanism
US2177817A
(en )
1939-10-31
Accounting machine
GB1122887A
(en )
1968-08-07
A data entry machine
GB608989A
(en )
1948-09-23
Improvements in calculating machines
US2805822A
(en )
1957-09-10
Totalizer controlling mechanism for accounting machines
US2614749A
(en )
1952-10-21
Totalizer actuator control mechanism
GB191421089A
(en )
1915-09-30
Improvements in or relating to Calculating Machines.
GB606629A
(enrdf_load_stackoverflow )
GB955536A
(enrdf_load_stackoverflow )
GB285885A
(enrdf_load_stackoverflow )
GB753841A
(enrdf_load_stackoverflow )
GB672771A
(enrdf_load_stackoverflow )
GB783872A
(enrdf_load_stackoverflow )
GB297717A
(enrdf_load_stackoverflow )
GB499027A
(enrdf_load_stackoverflow )
GB765450A
(enrdf_load_stackoverflow )
GB497640A
(enrdf_load_stackoverflow )
GB699954A
(en )
1953-11-18
Improvements in computing machines
GB200062A
(enrdf_load_stackoverflow )
GB804771A
(en )
1958-11-19
Multiplying Machines