GB540315A
(cg-RX-API-DMAC7.html )
US2805822A
(en )
1957-09-10
Totalizer controlling mechanism for accounting machines
GB768516A
(cg-RX-API-DMAC7.html )
GB545785A
(cg-RX-API-DMAC7.html )
US2365874A
(en )
1944-12-26
Computing machine
GB509444A
(cg-RX-API-DMAC7.html )
GB549960A
(cg-RX-API-DMAC7.html )
GB200062A
(cg-RX-API-DMAC7.html )
GB275968A
(cg-RX-API-DMAC7.html )
GB643189A
(cg-RX-API-DMAC7.html )
GB852822A
(cg-RX-API-DMAC7.html )
GB522721A
(en )
1940-06-25
Improvements relating to calculating machines
GB499027A
(cg-RX-API-DMAC7.html )
GB292619A
(cg-RX-API-DMAC7.html )
GB205436A
(cg-RX-API-DMAC7.html )
GB548465A
(cg-RX-API-DMAC7.html )
GB693657A
(en )
1953-07-01
Calculating machines
GB273691A
(cg-RX-API-DMAC7.html )
GB607744A
(cg-RX-API-DMAC7.html )
GB351007A
(cg-RX-API-DMAC7.html )
GB617346A
(cg-RX-API-DMAC7.html )
GB191006399A
(en )
1911-03-14
Improvements in and relating to Cash Registers and the like.
GB471364A
(cg-RX-API-DMAC7.html )
GB362857A
(cg-RX-API-DMAC7.html )
GB191226772A
(en )
1913-11-26
Improvements in and relating to Calculating Machines.