GB484095A
(https= )
GB479234A
(https= )
1900-01-01
GB598524A
(https= )
GB601375A
(https= )
US3072329A
(en )
1963-01-08
Control for motor operated business machines
GB496720A
(https= )
GB518837A
(https= )
GB516693A
(https= )
GB566376A
(https= )
GB191210902A
(en )
1913-06-09
Combined Typewriting and Computing Machine.
GB508141A
(https= )
GB509444A
(https= )
GB423169A
(en )
1935-01-24
Improvements in or relating to calculating and the like machines
GB395688A
(https= )
GB205870A
(en )
1923-10-24
Improvements in or relating to calculating machines
GB903879A
(https= )
GB417991A
(https= )
1900-01-01
GB752591A
(en )
1956-07-11
Improvements in or relating to calculating machines
GB672210A
(https= )
GB753841A
(https= )
GB732760A
(https= )
GB487494A
(https= )
GB191119694A
(en )
1912-09-04
Adding and Computing Machine.
GB741583A
(https= )
GB737050A
(en )
1955-09-21
Computing machine