GB628636A
(enrdf_load_stackoverflow )
US2261341A
(en )
1941-11-04
Adding and listing machine
GB479234A
(enrdf_load_stackoverflow )
1900-01-01
US2199253A
(en )
1940-04-30
Transfer mechanism for key-set
GB483113A
(enrdf_load_stackoverflow )
GB420807A
(enrdf_load_stackoverflow )
1900-01-01
GB480322A
(enrdf_load_stackoverflow )
GB497640A
(enrdf_load_stackoverflow )
GB297717A
(enrdf_load_stackoverflow )
GB305579A
(enrdf_load_stackoverflow )
GB368311A
(enrdf_load_stackoverflow )
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB193406A
(enrdf_load_stackoverflow )
GB206798A
(enrdf_load_stackoverflow )
GB293080A
(enrdf_load_stackoverflow )
GB732760A
(enrdf_load_stackoverflow )
GB921390A
(enrdf_load_stackoverflow )
GB362857A
(enrdf_load_stackoverflow )
GB191011810A
(en )
1911-03-09
Improvements in Calculating Machines.
GB285885A
(enrdf_load_stackoverflow )
GB296002A
(enrdf_load_stackoverflow )
GB417991A
(enrdf_load_stackoverflow )
1900-01-01
GB838815A
(enrdf_load_stackoverflow )
GB219923A
(enrdf_load_stackoverflow )
GB509042A
(enrdf_load_stackoverflow )