GB1082776A
(en )
1967-09-13
Keyboard mechanism for generating code combinations
US2121683A
(en )
1938-06-21
Calculating machine
US1738144A
(en )
1929-12-03
morton
GB295632A
(cg-RX-API-DMAC10.html )
GB334727A
(cg-RX-API-DMAC10.html )
US2055623A
(en )
1936-09-29
Calculating machine
GB909935A
(en )
1962-11-07
Calculating or similar accounting machine
GB484821A
(cg-RX-API-DMAC10.html )
GB194315A
(cg-RX-API-DMAC10.html )
GB243734A
(cg-RX-API-DMAC10.html )
GB453348A
(cg-RX-API-DMAC10.html )
GB417991A
(cg-RX-API-DMAC10.html )
1900-01-01
US2365874A
(en )
1944-12-26
Computing machine
GB484881A
(cg-RX-API-DMAC10.html )
GB912785A
(en )
1962-12-12
Accounting or similar calculating machines
GB464746A
(cg-RX-API-DMAC10.html )
GB608989A
(en )
1948-09-23
Improvements in calculating machines
GB672771A
(cg-RX-API-DMAC10.html )
GB765291A
(cg-RX-API-DMAC10.html )
GB617346A
(cg-RX-API-DMAC10.html )
GB292619A
(cg-RX-API-DMAC10.html )
GB483112A
(cg-RX-API-DMAC10.html )
GB739747A
(cg-RX-API-DMAC10.html )
GB447485A
(cg-RX-API-DMAC10.html )
GB474938A
(cg-RX-API-DMAC10.html )