GB296002A
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GB407380A
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1900-01-01
US2229771A
(en )
1941-01-28
Cash register
US1682196A
(en )
1928-08-28
Cash register
US1755499A
(en )
1930-04-22
Cash register
GB191508119A
(en )
1916-06-01
Improvements in and relating to Total Taking and Printing Mechanism of Adding and Subtracting Machines.
GB783849A
(enrdf_load_stackoverflow )
US1842951A
(en )
1932-01-26
robertson
GB703886A
(enrdf_load_stackoverflow )
1900-01-01
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB368117A
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GB537502A
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