GB407380A
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1900-01-01
US2229771A
(en )
1941-01-28
Cash register
GB193406A
(cg-RX-API-DMAC10.html )
GB206798A
(cg-RX-API-DMAC10.html )
US1874164A
(en )
1932-08-30
Total
GB191508119A
(en )
1916-06-01
Improvements in and relating to Total Taking and Printing Mechanism of Adding and Subtracting Machines.
GB783849A
(cg-RX-API-DMAC10.html )
US1842951A
(en )
1932-01-26
robertson
GB703886A
(cg-RX-API-DMAC10.html )
1900-01-01
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
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GB362857A
(cg-RX-API-DMAC10.html )
GB343152A
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GB648389A
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GB486201A
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GB1093237A
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GB480322A
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GB322544A
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GB509441A
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