GB740888A
(https= )
GB238901A
(https= )
US3669348A
(en )
1972-06-13
Apparatus for sensing digital information
GB709961A
(https= )
US2143599A
(en )
1939-01-10
Cash register, adding, and other calculating and accounting machine
GB605926A
(https= )
1900-01-01
GB368117A
(https= )
GB503626A
(https= )
GB420431A
(https= )
GB381158A
(https= )
GB190906428A
(en )
1910-03-17
Improvements in Cash Registers or Accounting Machines.
GB304201A
(https= )
GB173195A
(https= )
GB434369A
(https= )
GB604165A
(https= )
GB673462A
(https= )
GB550496A
(https= )
GB611539A
(en )
1948-11-01
Improvements in or relating to cash registers and similar accounting machines
GB536405A
(https= )
GB191019068A
(en )
1911-06-08
Improvements in Calculating Machines.
GB218689A
(https= )
GB750400A
(https= )
GB190914741A
(en )
1910-06-23
Improvements in and relating to Accounting Machines such as Cash Registers and Distant Totalizers therefor.
GB189719013A
(en )
1898-07-23
Improvements in or relating to Cash Registers or Indicators and Check Tills.
GB531081A
(https= )