GB550496A
(enrdf_load_stackoverflow )
US2708550A
(en )
1955-05-17
Value setting and transmitting mechanism for a ten key machine
GB526703A
(enrdf_load_stackoverflow )
US1005565A
(en )
1911-10-10
Printing-machine.
US1301073A
(en )
1919-04-15
Calculating-machine.
US1966657A
(en )
1934-07-17
von pein
GB464422A
(enrdf_load_stackoverflow )
US2369574A
(en )
1945-02-13
Locking mechanism for typewriting
GB531081A
(enrdf_load_stackoverflow )
GB672771A
(enrdf_load_stackoverflow )
US2646219A
(en )
1953-07-21
Key-driven calculating machine
GB191327655A
(en )
1915-01-01
Improvements in and relating to Methods of Calculating & Calculating Apparatus.
GB190906428A
(en )
1910-03-17
Improvements in Cash Registers or Accounting Machines.
GB191511254A
(en )
1916-08-04
Improvements in Combined Typewriting and Computing Machines.
GB191302318A
(en )
1914-01-01
Improvements in or relating to Adding Machines.
GB191030391A
(en )
1911-12-14
Improvements in Calculating Machines.
US1243839A
(en )
1917-10-23
Adding-machine.
GB617346A
(enrdf_load_stackoverflow )
GB127228A
(en )
1919-07-22
Improvements in Cash Registers or the like.
GB106881A
(enrdf_load_stackoverflow )
SU528891A3
(ru )
1976-09-15
Счетное наборное устройство
GB438369A
(enrdf_load_stackoverflow )
GB191203390A
(en )
1913-02-06
Combined Typewriter and Computing Machine.
GB219923A
(enrdf_load_stackoverflow )
GB658968A
(en )
1951-10-17
Improvements in or relating to an adding machine