US2221861A
(en )
1940-11-19
Calculating machine
US2666573A
(en )
1954-01-19
Differential latch mechanism
US2261341A
(en )
1941-11-04
Adding and listing machine
US3039680A
(en )
1962-06-19
Cash registers
US2883105A
(en )
1959-04-21
Ten key adding machine clearing mechanism
GB483112A
(cg-RX-API-DMAC10.html )
US1874164A
(en )
1932-08-30
Total
US2199253A
(en )
1940-04-30
Transfer mechanism for key-set
GB220387A
(cg-RX-API-DMAC10.html )
GB237351A
(en )
1925-07-27
Improvements in cash registers
US3128945A
(en )
1964-04-14
Calculating machine
GB242307A
(cg-RX-API-DMAC10.html )
GB173042A
(cg-RX-API-DMAC10.html )
US1887258A
(en )
1932-11-08
de simone
GB459812A
(cg-RX-API-DMAC10.html )
GB191019978A
(en )
1911-08-24
Improvements in and relating to Cash Registers.
GB668507A
(cg-RX-API-DMAC10.html )
GB469034A
(cg-RX-API-DMAC10.html )
GB442771A
(en )
1936-02-12
Improvements in or relating to cash registers and similar accounting machines
GB203642A
(cg-RX-API-DMAC10.html )
GB523064A
(cg-RX-API-DMAC10.html )
GB255102A
(cg-RX-API-DMAC10.html )
GB483086A
(cg-RX-API-DMAC10.html )
GB241983A
(cg-RX-API-DMAC10.html )
GB193870A
(cg-RX-API-DMAC10.html )