GB672804A
(enrdf_load_stackoverflow )
US2087182A
(en )
1937-07-13
Listing adding machine
US1915296A
(en )
1933-06-27
crosman
GB483093A
(enrdf_load_stackoverflow )
GB479234A
(enrdf_load_stackoverflow )
1900-01-01
US2994474A
(en )
1961-08-01
fleming
GB423169A
(en )
1935-01-24
Improvements in or relating to calculating and the like machines
GB732760A
(enrdf_load_stackoverflow )
GB363470A
(enrdf_load_stackoverflow )
GB1122887A
(en )
1968-08-07
A data entry machine
GB516693A
(enrdf_load_stackoverflow )
GB417991A
(enrdf_load_stackoverflow )
1900-01-01
GB598524A
(enrdf_load_stackoverflow )
GB497640A
(enrdf_load_stackoverflow )
GB852822A
(enrdf_load_stackoverflow )
GB191346A
(en )
1923-01-04
Improvements in and relating to keyboard and differential mechanism for cash registers and like machines
GB613616A
(enrdf_load_stackoverflow )
GB675363A
(enrdf_load_stackoverflow )
GB453280A
(enrdf_load_stackoverflow )
GB506500A
(enrdf_load_stackoverflow )
GB449004A
(enrdf_load_stackoverflow )
GB191508119A
(en )
1916-06-01
Improvements in and relating to Total Taking and Printing Mechanism of Adding and Subtracting Machines.
GB753841A
(enrdf_load_stackoverflow )
GB489693A
(enrdf_load_stackoverflow )
GB453348A
(enrdf_load_stackoverflow )