GB298114A
(enrdf_load_stackoverflow )
GB496720A
(enrdf_load_stackoverflow )
GB925165A
(enrdf_load_stackoverflow )
GB190724489A
(en )
1908-11-05
Improvements in Adding Machines.
GB190826763A
(en )
1909-12-09
Improvements in Apparatus for Adding or Calculating.
GB757113A
(enrdf_load_stackoverflow )
GB146792A
(enrdf_load_stackoverflow )
GB169983A
(enrdf_load_stackoverflow )
GB148235A
(en )
1921-01-06
Improvements in practice-key boards
GB191017472A
(en )
1911-02-07
Improvements in or relating to Cash Registers.
GB191219273A
(en )
1913-03-13
Improvements in the Keyboards and Connecting Members of Calculating Machines.
GB166488A
(enrdf_load_stackoverflow )
GB462320A
(enrdf_load_stackoverflow )
GB191318763A
(en )
Improvements in or relating to Subtraction Devices for Self-writing Adding Machines.
GB660642A
(enrdf_load_stackoverflow )
GB305579A
(enrdf_load_stackoverflow )
GB547954A
(enrdf_load_stackoverflow )
GB178847A
(enrdf_load_stackoverflow )
GB613616A
(enrdf_load_stackoverflow )
GB413304A
(enrdf_load_stackoverflow )
GB143339A
(en )
1920-05-27
Machine for simultaneously printing amounts in figures and words on dividend warrants, cheques, receipts and the like
GB191108438A
(en )
1912-04-04
Improvements in Recording Adding Machines.
GB608988A
(enrdf_load_stackoverflow )
GB767946A
(en )
1957-02-13
Improvements in or relating to operation control devices
GB147763A
(enrdf_load_stackoverflow )