GB295678A
(enExample )
US2986993A
(en )
1961-06-06
H gang
US2756926A
(en )
1956-07-31
Dodsworth
US3029014A
(en )
1962-04-10
Capellaro
GB809523A
(en )
1959-02-25
Ten key adding and subtracting machine
US2675175A
(en )
1954-04-13
Indian currency adding machine
US2678160A
(en )
1954-05-11
Key-responsive recording
US2261341A
(en )
1941-11-04
Adding and listing machine
US1915296A
(en )
1933-06-27
crosman
US2577395A
(en )
1951-12-04
Autographic eegister
US1956569A
(en )
1934-05-01
Adding and listing machine
US2858924A
(en )
1958-11-04
Toll biller control
US2267885A
(en )
1941-12-30
Printing mechanism for computing machines
US1294704A
(en )
1919-02-18
Elimination and special-signal mechanism.
GB124694A
(enExample )
US3015437A
(en )
1962-01-02
Totalizing control means
GB351495A
(en )
1931-06-26
Improvements in or relating to printing mechanism
GB144685A
(en )
1921-04-07
Improvements in printing mechanism for calculating machines
US3007633A
(en )
1961-11-07
Total taking mechanism for crawl-carry accumulators
US1599634A
(en )
1926-09-14
Signal-printing mechanism
GB408795A
(en )
1934-04-19
Improvements in or relating to calculating and/or check writing machines
GB217523A
(en )
1924-06-10
Improvements in total-printing mechanism for use in recordcard-controlled statistical machines
GB205870A
(en )
1923-10-24
Improvements in or relating to calculating machines
US1070783A
(en )
1913-08-19
Register for adding-machines.
GB559358A
(en )
1944-02-15
Improvements in or relating to printing mechanism for statistical, accounting and like machines