GB524895A
(enrdf_load_stackoverflow )
US2657855A
(en )
1953-11-03
winkler
GB521300A
(enrdf_load_stackoverflow )
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB776270A
(enrdf_load_stackoverflow )
US1927878A
(en )
1933-09-26
Calculating machine
US3612831A
(en )
1971-10-12
Function key mechanism in calculating machine or the like
GB144361A
(en )
1920-06-07
Improvements in cash registers
GB628636A
(enrdf_load_stackoverflow )
GB368117A
(enrdf_load_stackoverflow )
GB442538A
(enrdf_load_stackoverflow )
GB296002A
(enrdf_load_stackoverflow )
GB368311A
(enrdf_load_stackoverflow )
GB434369A
(enrdf_load_stackoverflow )
GB106881A
(enrdf_load_stackoverflow )
GB191115908A
(en )
1912-07-04
Improvements in or relating to the Setting and Differential Actuating Mechanisms of Calculating-machines.
GB737050A
(en )
1955-09-21
Computing machine
GB483093A
(enrdf_load_stackoverflow )
GB713695A
(enrdf_load_stackoverflow )
1900-01-01
GB504823A
(enrdf_load_stackoverflow )
GB416498A
(enrdf_load_stackoverflow )
GB305579A
(enrdf_load_stackoverflow )
GB408633A
(enrdf_load_stackoverflow )
GB191116725A
(en )
1912-07-18
Improvements in or relating to Cash Register Machines.
GB219923A
(enrdf_load_stackoverflow )