US2261341A
(en )
1941-11-04
Adding and listing machine
GB479234A
(cg-RX-API-DMAC10.html )
1900-01-01
US2199253A
(en )
1940-04-30
Transfer mechanism for key-set
GB483113A
(cg-RX-API-DMAC10.html )
GB420807A
(cg-RX-API-DMAC10.html )
1900-01-01
GB480322A
(cg-RX-API-DMAC10.html )
GB497640A
(cg-RX-API-DMAC10.html )
GB297717A
(cg-RX-API-DMAC10.html )
GB305579A
(cg-RX-API-DMAC10.html )
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB193406A
(cg-RX-API-DMAC10.html )
GB206798A
(cg-RX-API-DMAC10.html )
GB293080A
(cg-RX-API-DMAC10.html )
GB921390A
(cg-RX-API-DMAC10.html )
GB362857A
(cg-RX-API-DMAC10.html )
GB191011810A
(en )
1911-03-09
Improvements in Calculating Machines.
GB285885A
(cg-RX-API-DMAC10.html )
US1294704A
(en )
1919-02-18
Elimination and special-signal mechanism.
GB600446A
(cg-RX-API-DMAC10.html )
GB296002A
(cg-RX-API-DMAC10.html )
GB417991A
(cg-RX-API-DMAC10.html )
1900-01-01
GB838815A
(cg-RX-API-DMAC10.html )
GB190828253A
(en )
1909-12-28
Improvements in and relating to Mechanical Calculators.
GB509042A
(cg-RX-API-DMAC10.html )
GB409101A
(cg-RX-API-DMAC10.html )