GB672771A
(enExample )
GB1122887A
(en )
1968-08-07
A data entry machine
GB479234A
(enExample )
1900-01-01
GB298114A
(enExample )
GB417991A
(enExample )
1900-01-01
GB652232A
(enExample )
GB191111199A
(en )
1911-10-26
Improvements in and relating to Sash-locks.
GB613616A
(enExample )
GB395688A
(enExample )
GB269928A
(enExample )
GB608988A
(enExample )
GB509444A
(enExample )
GB445540A
(enExample )
GB720088A
(enExample )
US3027077A
(en )
1962-03-27
Operation control mechanism for cash registers
GB537502A
(enExample )
GB295632A
(enExample )
GB191120332A
(en )
1912-09-12
Improvements in and relating to Cash Registers.
GB363470A
(enExample )
GB693657A
(en )
1953-07-01
Calculating machines
GB190922862A
(en )
1909-12-10
Improvements in Apparatus for Adding or Calculating.
GB543965A
(enExample )
GB427792A
(enExample )
GB484095A
(enExample )
GB191219273A
(en )
1913-03-13
Improvements in the Keyboards and Connecting Members of Calculating Machines.