GB169794A
(cg-RX-API-DMAC7.html )
US2087182A
(en )
1937-07-13
Listing adding machine
US2280919A
(en )
1942-04-28
landsiedel
US1833467A
(en )
1931-11-24
Calgujlatihg mageiitb
US3072329A
(en )
1963-01-08
Control for motor operated business machines
US1892614A
(en )
1932-12-27
renders
GB642090A
(en )
1950-08-30
Keyboard impulse transmitter for step-by-step printing telegraph
GB293080A
(cg-RX-API-DMAC7.html )
GB396679A
(en )
1933-08-10
Improvements in cash registers or the like
GB191328399A
(en )
1914-12-09
Calculating Machine.
GB154603A
(cg-RX-API-DMAC7.html )
GB483113A
(cg-RX-API-DMAC7.html )
GB241213A
(cg-RX-API-DMAC7.html )
GB305579A
(cg-RX-API-DMAC7.html )
GB144367A
(cg-RX-API-DMAC7.html )
GB273691A
(cg-RX-API-DMAC7.html )
GB509042A
(cg-RX-API-DMAC7.html )
GB982721A
(en )
1965-02-10
Adding machine
GB628636A
(cg-RX-API-DMAC7.html )
GB506013A
(cg-RX-API-DMAC7.html )
GB297717A
(cg-RX-API-DMAC7.html )
GB191311823A
(en )
1914-03-05
Improvements in and relating to Adding and Listing Machines.
GB727100A
(cg-RX-API-DMAC7.html )
GB368779A
(en )
1932-03-07
Improvements relating to cash registers
GB191226890A
(en )
1913-11-06
Improvements in Adding Machines.