GB290246A
(enrdf_load_stackoverflow )
US1957501A
(en )
1934-05-08
Method and means for obtaining true
US3029014A
(en )
1962-04-10
Capellaro
US1833467A
(en )
1931-11-24
Calgujlatihg mageiitb
US2070785A
(en )
1937-02-16
Register
GB267630A
(enrdf_load_stackoverflow )
GB648922A
(enrdf_load_stackoverflow )
GB453348A
(enrdf_load_stackoverflow )
GB401825A
(enrdf_load_stackoverflow )
US1744033A
(en )
1930-01-21
berger
GB713484A
(enrdf_load_stackoverflow )
GB265122A
(enrdf_load_stackoverflow )
GB477035A
(enrdf_load_stackoverflow )
GB205436A
(enrdf_load_stackoverflow )
GB483112A
(enrdf_load_stackoverflow )
GB295632A
(enrdf_load_stackoverflow )
GB371412A
(enrdf_load_stackoverflow )
GB343152A
(enrdf_load_stackoverflow )
GB912785A
(en )
1962-12-12
Accounting or similar calculating machines
GB921390A
(enrdf_load_stackoverflow )
GB205870A
(en )
1923-10-24
Improvements in or relating to calculating machines
GB506500A
(enrdf_load_stackoverflow )
GB243734A
(enrdf_load_stackoverflow )
GB265134A
(enrdf_load_stackoverflow )
GB657604A
(en )
1951-09-19
Improvements in or relating to accounting and similar calculating machines