GB221833A
(https= )
US2986993A
(en )
1961-06-06
H gang
US2545636A
(en )
1951-03-20
Printing and punching means for accounting machines
US2459468A
(en )
1949-01-18
Accounting machine
US2202948A
(en )
1940-06-04
Calculating machine
GB221812A
(https= )
GB416498A
(https= )
US1309536A
(en )
1919-07-08
Quotient mechanise for computing-machines
GB351086A
(https= )
GB371462A
(en )
1932-04-21
Improvements in or relating to totalizer control mechanism for cash registers of the key set and key operated type
US3279694A
(en )
1966-10-18
Jr., etal
totalizer selecting control
US2991008A
(en )
1961-07-04
goldberg
GB343152A
(https= )
US3064892A
(en )
1962-11-20
Mvscozzafxva
US2725818A
(en )
1955-12-06
A parsons
GB191346A
(en )
1923-01-04
Improvements in and relating to keyboard and differential mechanism for cash registers and like machines
GB608694A
(https= )
GB191350A
(https= )
US1702861A
(en )
1929-02-19
Cash register
GB418536A
(https= )
GB481127A
(https= )
GB210713A
(https= )
GB442856A
(https= )
GB526703A
(https= )
GB501404A
(https= )