US2221861A
(en )
1940-11-19
Calculating machine
US2226960A
(en )
1940-12-31
Accounting machine
GB540312A
(enrdf_load_stackoverflow )
US2821342A
(en )
1958-01-28
Capellaro
US2285311A
(en )
1942-06-02
Accounting machine
US2248202A
(en )
1941-07-08
Combined typewriting and computing
US2701685A
(en )
1955-02-08
Calculating mechanism
US2254760A
(en )
1941-09-02
Computing and printing machine
US2229771A
(en )
1941-01-28
Cash register
US1854216A
(en )
1932-04-19
muller
US3042294A
(en )
1962-07-03
Calculating machine with instruction modifying mechanism
GB668507A
(enrdf_load_stackoverflow )
US1260615A
(en )
1918-03-26
Calculating-machine.
GB483086A
(enrdf_load_stackoverflow )
GB483113A
(enrdf_load_stackoverflow )
GB778652A
(enrdf_load_stackoverflow )
GB730465A
(enrdf_load_stackoverflow )
GB285885A
(enrdf_load_stackoverflow )
GB191311823A
(en )
1914-03-05
Improvements in and relating to Adding and Listing Machines.
GB457273A
(enrdf_load_stackoverflow )
GB452414A
(enrdf_load_stackoverflow )
GB322544A
(enrdf_load_stackoverflow )
GB442538A
(enrdf_load_stackoverflow )
GB955536A
(enrdf_load_stackoverflow )
GB660615A
(enrdf_load_stackoverflow )