US2809786A
(en )
1957-10-15
Dividend divisor aligning mechanism
GB736097A
(enrdf_load_stackoverflow )
GB509747A
(enrdf_load_stackoverflow )
US2706082A
(en )
1955-04-12
Lydfors
US2260291A
(en )
1941-10-28
Calculating machine
US2992773A
(en )
1961-07-18
Multiplication mechanism for adding machines
US2902124A
(en )
1959-09-01
Operating mechanism for power driven business machines
US2273251A
(en )
1942-02-17
Calculating machine
GB551311A
(enrdf_load_stackoverflow )
US2352376A
(en )
1944-06-27
Calculating machine
GB411291A
(enrdf_load_stackoverflow )
GB438516A
(enrdf_load_stackoverflow )
US2949229A
(en )
1960-08-16
gubelmann
GB434369A
(enrdf_load_stackoverflow )
GB722701A
(enrdf_load_stackoverflow )
US2530515A
(en )
1950-11-21
Value selecting and entering
GB686524A
(enrdf_load_stackoverflow )
GB318256A
(enrdf_load_stackoverflow )
GB577330A
(enrdf_load_stackoverflow )
1900-01-01
GB304121A
(enrdf_load_stackoverflow )
GB464422A
(enrdf_load_stackoverflow )
GB734159A
(enrdf_load_stackoverflow )
GB798285A
(enrdf_load_stackoverflow )
GB365058A
(enrdf_load_stackoverflow )
GB270350A
(en )
1928-03-29
Improvements in or relating to cash registers