GB451011A
(cg-RX-API-DMAC7.html )
US2087182A
(en )
1937-07-13
Listing adding machine
US1630814A
(en )
1927-05-31
Cash register
GB650357A
(en )
1951-02-21
Differential setting mechanism for cash registers or similar accounting machines
GB191511254A
(en )
1916-08-04
Improvements in Combined Typewriting and Computing Machines.
US1864193A
(en )
1932-06-21
Calculating machine
US2809782A
(en )
1957-10-15
fleming
GB438369A
(cg-RX-API-DMAC7.html )
GB748825A
(en )
1956-05-09
Improvements in or relating to tabulator mechanism of a typewriter or like machine
US1382874A
(en )
1921-06-28
Check-writer
US2994474A
(en )
1961-08-01
fleming
GB420807A
(cg-RX-API-DMAC7.html )
1900-01-01
US833389A
(en )
1906-10-16
Adding-machine.
GB295632A
(cg-RX-API-DMAC7.html )
GB191027151A
(en )
1911-09-28
Improvements in Calculating Machines.
GB191121592A
(en )
1912-09-26
Improvements in or relating to Adding Machines.
GB530120A
(cg-RX-API-DMAC7.html )
GB631379A
(cg-RX-API-DMAC7.html )
GB484821A
(cg-RX-API-DMAC7.html )
GB417991A
(cg-RX-API-DMAC7.html )
1900-01-01
GB509042A
(cg-RX-API-DMAC7.html )
GB389630A
(cg-RX-API-DMAC7.html )
1900-01-01
GB497640A
(cg-RX-API-DMAC7.html )
GB285885A
(cg-RX-API-DMAC7.html )
GB604165A
(cg-RX-API-DMAC7.html )