GB713484A
(enrdf_load_stackoverflow )
US1840424A
(en )
1932-01-12
Calculating machine
GB479234A
(enrdf_load_stackoverflow )
1900-01-01
US1811353A
(en )
1931-06-23
Fornia
US1016308A
(en )
1912-02-06
Adding and listing machine.
US1840535A
(en )
1932-01-12
shipley
GB675363A
(enrdf_load_stackoverflow )
US1738144A
(en )
1929-12-03
morton
GB566376A
(enrdf_load_stackoverflow )
US1396716A
(en )
1921-11-08
magnus
GB728773A
(enrdf_load_stackoverflow )
GB445540A
(enrdf_load_stackoverflow )
GB713408A
(enrdf_load_stackoverflow )
US1028149A
(en )
1912-06-04
Adding-machine.
GB295632A
(enrdf_load_stackoverflow )
GB700946A
(enrdf_load_stackoverflow )
GB477035A
(enrdf_load_stackoverflow )
GB693659A
(enrdf_load_stackoverflow )
GB190902119A
(en )
1909-09-30
Improvements in or relating to Adding Machines.
GB191210902A
(en )
1913-06-09
Combined Typewriting and Computing Machine.
GB703886A
(enrdf_load_stackoverflow )
1900-01-01
GB162734A
(enrdf_load_stackoverflow )
GB191311823A
(en )
1914-03-05
Improvements in and relating to Adding and Listing Machines.
GB499027A
(enrdf_load_stackoverflow )
GB672771A
(enrdf_load_stackoverflow )