US2342529A
(en )
1944-02-22
Calculating machine
US2821342A
(en )
1958-01-28
Capellaro
US2754052A
(en )
1956-07-10
Capellaro
GB787507A
(enrdf_load_stackoverflow )
US2087182A
(en )
1937-07-13
Listing adding machine
US3079073A
(en )
1963-02-26
Heinzeetal
US3009634A
(en )
1961-11-21
Allward
US2992773A
(en )
1961-07-18
Multiplication mechanism for adding machines
US3370788A
(en )
1968-02-27
Program control device for a calculating or like machine
US3476313A
(en )
1969-11-04
Calculating machine with short cut multiplication
US3130904A
(en )
1964-04-28
- calculating machine with storing mechanism
GB479234A
(enrdf_load_stackoverflow )
1900-01-01
US3194496A
(en )
1965-07-13
Pin carriage to clutch interlock mechanism in a ten-key adding and subtracting machine
US1908358A
(en )
1933-05-09
And detroit totst cqwpawz
GB518840A
(enrdf_load_stackoverflow )
US3086701A
(en )
1963-04-23
Capellaro
US3040977A
(en )
1962-06-26
Function control mechanism for manual adding machines
GB721535A
(enrdf_load_stackoverflow )
US3015436A
(en )
1962-01-02
Division mechanism for listing calculator
US2614749A
(en )
1952-10-21
Totalizer actuator control mechanism
US3331556A
(en )
1967-07-18
Power driving device for a calculating machine
GB753841A
(enrdf_load_stackoverflow )
GB718412A
(enrdf_load_stackoverflow )
US3423018A
(en )
1969-01-21
Ten key calculating machine adapted to effect multiplications as well as divisions
US3135463A
(en )
1964-06-02
tingley