GB829800A
(cg-RX-API-DMAC7.html )
US2087182A
(en )
1937-07-13
Listing adding machine
US2070785A
(en )
1937-02-16
Register
US2722377A
(en )
1955-11-01
Dividend-divisor aligning mechanism
GB479234A
(cg-RX-API-DMAC7.html )
1900-01-01
US3039680A
(en )
1962-06-19
Cash registers
GB849752A
(en )
1960-09-28
Improvements in or relating to 10-key calculating machines
GB506500A
(cg-RX-API-DMAC7.html )
GB516693A
(cg-RX-API-DMAC7.html )
GB368779A
(en )
1932-03-07
Improvements relating to cash registers
GB903879A
(cg-RX-API-DMAC7.html )
GB193406A
(cg-RX-API-DMAC7.html )
GB526762A
(en )
1940-09-25
Improvements in calculating machines
GB703886A
(cg-RX-API-DMAC7.html )
1900-01-01
GB293080A
(cg-RX-API-DMAC7.html )
GB747352A
(cg-RX-API-DMAC7.html )
GB483093A
(cg-RX-API-DMAC7.html )
GB648390A
(cg-RX-API-DMAC7.html )
GB644383A
(cg-RX-API-DMAC7.html )
GB401904A
(cg-RX-API-DMAC7.html )
GB469034A
(cg-RX-API-DMAC7.html )
GB773246A
(cg-RX-API-DMAC7.html )
GB501404A
(cg-RX-API-DMAC7.html )
GB737050A
(en )
1955-09-21
Computing machine
GB732760A
(cg-RX-API-DMAC7.html )