GB389632A
(enrdf_load_stackoverflow )
US2087182A
(en )
1937-07-13
Listing adding machine
GB909935A
(en )
1962-11-07
Calculating or similar accounting machine
US2902124A
(en )
1959-09-01
Operating mechanism for power driven business machines
US2264582A
(en )
1941-12-02
Accounting machine
US2261341A
(en )
1941-11-04
Adding and listing machine
US3072329A
(en )
1963-01-08
Control for motor operated business machines
GB650357A
(en )
1951-02-21
Differential setting mechanism for cash registers or similar accounting machines
US2250403A
(en )
1941-07-22
Division stop mechanism fob
GB280580A
(en )
1929-02-11
Improvements in or relating to statistical machines
GB389630A
(enrdf_load_stackoverflow )
1900-01-01
US2055623A
(en )
1936-09-29
Calculating machine
GB183867A
(en )
1922-07-26
Improvements relating to apparatus for compiling and printing statistics from perforated record cards
US1965192A
(en )
1934-07-03
Cash register
GB497640A
(enrdf_load_stackoverflow )
US1761572A
(en )
1930-06-03
Certificate of correction
GB749504A
(enrdf_load_stackoverflow )
GB509042A
(enrdf_load_stackoverflow )
GB629975A
(enrdf_load_stackoverflow )
GB881323A
(enrdf_load_stackoverflow )
GB483113A
(enrdf_load_stackoverflow )
GB483093A
(enrdf_load_stackoverflow )
GB420807A
(enrdf_load_stackoverflow )
1900-01-01
GB293080A
(enrdf_load_stackoverflow )
GB411291A
(enrdf_load_stackoverflow )