GB219923A
(enrdf_load_stackoverflow )
GB479234A
(enrdf_load_stackoverflow )
1900-01-01
GB729820A
(enrdf_load_stackoverflow )
US2261341A
(en )
1941-11-04
Adding and listing machine
US2199253A
(en )
1940-04-30
Transfer mechanism for key-set
US1923685A
(en )
1933-08-22
Checkwriter
GB491465A
(enrdf_load_stackoverflow )
US2060702A
(en )
1936-11-10
Calculating machine
GB744974A
(enrdf_load_stackoverflow )
GB191011810A
(en )
1911-03-09
Improvements in Calculating Machines.
GB191203390A
(en )
1913-02-06
Combined Typewriter and Computing Machine.
GB434369A
(enrdf_load_stackoverflow )
GB628636A
(enrdf_load_stackoverflow )
GB190805419A
(en )
1909-03-10
Improvements in or relating to Adding Machines.
GB474405A
(enrdf_load_stackoverflow )
GB526703A
(enrdf_load_stackoverflow )
GB750400A
(enrdf_load_stackoverflow )
GB611603A
(enrdf_load_stackoverflow )
GB483113A
(enrdf_load_stackoverflow )
GB297717A
(enrdf_load_stackoverflow )
GB207858A
(enrdf_load_stackoverflow )
GB166489A
(enrdf_load_stackoverflow )
GB431961A
(enrdf_load_stackoverflow )
GB921390A
(enrdf_load_stackoverflow )
GB672210A
(enrdf_load_stackoverflow )