GB462686A
(cg-RX-API-DMAC7.html )
GB518617A
(cg-RX-API-DMAC7.html )
GB471765A
(cg-RX-API-DMAC7.html )
GB407380A
(cg-RX-API-DMAC7.html )
1900-01-01
US1294704A
(en )
1919-02-18
Elimination and special-signal mechanism.
US1682196A
(en )
1928-08-28
Cash register
GB465798A
(cg-RX-API-DMAC7.html )
GB506500A
(cg-RX-API-DMAC7.html )
GB643189A
(cg-RX-API-DMAC7.html )
GB408795A
(en )
1934-04-19
Improvements in or relating to calculating and/or check writing machines
GB509042A
(cg-RX-API-DMAC7.html )
US2698138A
(en )
1954-12-28
Special counter mechanism
GB238901A
(cg-RX-API-DMAC7.html )
GB425542A
(cg-RX-API-DMAC7.html )
GB268839A
(cg-RX-API-DMAC7.html )
GB465890A
(cg-RX-API-DMAC7.html )
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB484881A
(cg-RX-API-DMAC7.html )
GB501443A
(cg-RX-API-DMAC7.html )
GB407054A
(cg-RX-API-DMAC7.html )
GB228184A
(cg-RX-API-DMAC7.html )
GB628636A
(cg-RX-API-DMAC7.html )
GB273691A
(cg-RX-API-DMAC7.html )
GB709961A
(cg-RX-API-DMAC7.html )
GB348630A
(cg-RX-API-DMAC7.html )