GB710891A
(enrdf_load_stackoverflow )
GB509747A
(enrdf_load_stackoverflow )
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(en )
1937-07-13
Listing adding machine
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(en )
1941-11-04
Adding and listing machine
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1942-10-06
Listing calculator
GB730465A
(enrdf_load_stackoverflow )
GB295632A
(enrdf_load_stackoverflow )
GB474938A
(enrdf_load_stackoverflow )
GB191311823A
(en )
1914-03-05
Improvements in and relating to Adding and Listing Machines.
GB424420A
(enrdf_load_stackoverflow )
1900-01-01
GB829800A
(enrdf_load_stackoverflow )
GB241213A
(enrdf_load_stackoverflow )
GB484821A
(enrdf_load_stackoverflow )
GB712751A
(enrdf_load_stackoverflow )
GB191316036A
(en )
1914-09-11
Improvements in and relating to Calculating Machines.
GB545438A
(enrdf_load_stackoverflow )
GB598524A
(enrdf_load_stackoverflow )
GB540312A
(enrdf_load_stackoverflow )
GB401904A
(enrdf_load_stackoverflow )
GB392181A
(enrdf_load_stackoverflow )
GB753841A
(enrdf_load_stackoverflow )
GB747352A
(enrdf_load_stackoverflow )
GB293080A
(enrdf_load_stackoverflow )
GB487494A
(enrdf_load_stackoverflow )
GB483113A
(enrdf_load_stackoverflow )