GB453495A
(enrdf_load_stackoverflow )
US2055623A
(en )
1936-09-29
Calculating machine
GB250612A
(enrdf_load_stackoverflow )
GB483113A
(enrdf_load_stackoverflow )
GB442856A
(enrdf_load_stackoverflow )
GB305579A
(enrdf_load_stackoverflow )
GB757113A
(enrdf_load_stackoverflow )
GB238901A
(enrdf_load_stackoverflow )
GB722701A
(enrdf_load_stackoverflow )
GB598524A
(enrdf_load_stackoverflow )
GB486201A
(enrdf_load_stackoverflow )
GB166489A
(enrdf_load_stackoverflow )
GB420431A
(enrdf_load_stackoverflow )
GB516693A
(enrdf_load_stackoverflow )
GB765450A
(enrdf_load_stackoverflow )
GB508141A
(enrdf_load_stackoverflow )
GB484821A
(enrdf_load_stackoverflow )
GB443786A
(enrdf_load_stackoverflow )
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB628064A
(enrdf_load_stackoverflow )
GB265208A
(en )
1927-06-30
Improvements in or relating to cash registers of the key-set and key-operated type
GB442538A
(enrdf_load_stackoverflow )
GB389841A
(enrdf_load_stackoverflow )
GB483093A
(enrdf_load_stackoverflow )
GB635580A
(enrdf_load_stackoverflow )