GB712751A
(enrdf_load_stackoverflow )
US2330689A
(en )
1943-09-28
Register
US1203863A
(en )
1916-11-07
Mechanical calculator.
GB727100A
(enrdf_load_stackoverflow )
GB909935A
(en )
1962-11-07
Calculating or similar accounting machine
US2651462A
(en )
1953-09-08
Item, total, and repeated registration control mechanism
US2221686A
(en )
1940-11-12
Calculating machine
US570196A
(en )
1896-10-27
Fayette barnard
US2994474A
(en )
1961-08-01
fleming
GB190906428A
(en )
1910-03-17
Improvements in Cash Registers or Accounting Machines.
GB732760A
(enrdf_load_stackoverflow )
US1150916A
(en )
1915-08-24
Calculating-machine.
US1864193A
(en )
1932-06-21
Calculating machine
GB551311A
(enrdf_load_stackoverflow )
GB265134A
(enrdf_load_stackoverflow )
GB445540A
(enrdf_load_stackoverflow )
GB551994A
(enrdf_load_stackoverflow )
GB191416001A
(en )
1914-08-17
Improvements in Calculating Machines.
GB190518341A
(en )
1906-07-05
Combined Typewriting and Adding Machine.
GB341435A
(en )
1931-01-09
Improvements in calculating machines
GB191512527A
(en )
1916-10-02
Improvements in or relating to Adding or like Machines.
GB191226772A
(en )
1913-11-26
Improvements in and relating to Calculating Machines.
GB710891A
(enrdf_load_stackoverflow )
GB191214777A
(en )
1912-11-07
Improvements in or relating to Adding or like Machines.
GB295632A
(enrdf_load_stackoverflow )