GB778643A
(cg-RX-API-DMAC7.html )
US3009634A
(en )
1961-11-21
Allward
US3008637A
(en )
1961-11-14
Complemental keyboard
US2756935A
(en )
1956-07-31
Pence differential mechanism
GB479234A
(cg-RX-API-DMAC7.html )
1900-01-01
US1270855A
(en )
1918-07-02
Adding-machine.
US2982469A
(en )
1961-05-02
Capel
GB469034A
(cg-RX-API-DMAC7.html )
US2628780A
(en )
1953-02-17
Zero stop mechanism
GB729820A
(cg-RX-API-DMAC7.html )
GB768516A
(cg-RX-API-DMAC7.html )
GB219923A
(cg-RX-API-DMAC7.html )
US1946602A
(en )
1934-02-13
Cash register
US2698138A
(en )
1954-12-28
Special counter mechanism
GB671615A
(en )
1952-05-07
Improvements in or relating to accumulators for accounting machines
GB197352A
(cg-RX-API-DMAC7.html )
GB191213037A
(en )
1912-11-22
Improvements in and relating to Adding and Transaction-counting Mechanism for Cash Registers, or Computing or Registering Machines.
GB238901A
(cg-RX-API-DMAC7.html )
GB352731A
(cg-RX-API-DMAC7.html )
GB491465A
(cg-RX-API-DMAC7.html )
GB353292A
(cg-RX-API-DMAC7.html )
GB875275A
(cg-RX-API-DMAC7.html )
1900-01-01
GB124693A
(cg-RX-API-DMAC7.html )
GB680288A
(cg-RX-API-DMAC7.html )
GB424420A
(cg-RX-API-DMAC7.html )
1900-01-01