US2203336A
(en )
1940-06-04
Computing and listing machine
GB773004A
(enrdf_load_stackoverflow )
US1899444A
(en )
1933-02-28
Adding and listing machine
US2572922A
(en )
1951-10-30
Stopping means for calculating machines
US2280919A
(en )
1942-04-28
landsiedel
US2274049A
(en )
1942-02-24
Calculating machine
US2087182A
(en )
1937-07-13
Listing adding machine
US1994211A
(en )
1935-03-12
Listing adding machine
US2142440A
(en )
1939-01-03
Automatic cash registering device for coin-controlled franking apparatus
US2918212A
(en )
1959-12-22
Calculating machine
US2854123A
(en )
1958-09-30
Power operated tabulating mechanism
US2107142A
(en )
1938-02-01
Listing adding machine
US3072329A
(en )
1963-01-08
Control for motor operated business machines
US2483459A
(en )
1949-10-04
Calculating machine
US1862754A
(en )
1932-06-14
Automatic shuttle mechanism tor adding machines
US2570931A
(en )
1951-10-09
Printing tabulating mechanism
US2320025A
(en )
1943-05-25
Calculating machine
US2509493A
(en )
1950-05-30
Key operated actuator mechanism
US2918217A
(en )
1959-12-22
llorens
US2199253A
(en )
1940-04-30
Transfer mechanism for key-set
GB709181A
(enrdf_load_stackoverflow )
US4027763A
(en )
1977-06-07
Keyboard for office machines
US3674200A
(en )
1972-07-04
Selector and setting device for the synchronous operation of at least two multi-denominational counters in a machine such as a cash register capable of effecting printing operations
US2057161A
(en )
1936-10-13
Calculating machine
US3331556A
(en )
1967-07-18
Power driving device for a calculating machine