GB875910A
(enrdf_load_stackoverflow )
US2422103A
(en )
1947-06-10
Duplex calculating machine
US1773026A
(en )
1930-08-12
For calculators
GB479234A
(enrdf_load_stackoverflow )
1900-01-01
US913859A
(en )
1909-03-02
Calculating attachment for type-writing machines.
US2291949A
(en )
1942-08-04
Listing adding machine
GB734158A
(en )
1955-07-27
Calculating machine
US1892614A
(en )
1932-12-27
renders
US3007633A
(en )
1961-11-07
Total taking mechanism for crawl-carry accumulators
US1188467A
(en )
1916-06-27
Total-printing cash-register.
US1773025A
(en )
1930-08-12
chase
GB753841A
(enrdf_load_stackoverflow )
GB191019978A
(en )
1911-08-24
Improvements in and relating to Cash Registers.
US1825143A
(en )
1931-09-29
Combined typewriting and computing machine
US1829210A
(en )
1931-10-27
A corpobation of dela
GB736097A
(enrdf_load_stackoverflow )
GB190518341A
(en )
1906-07-05
Combined Typewriting and Adding Machine.
GB191109563A
(en )
1912-06-19
Improvements in and relating to Multiplying Arrangements for Calculating Machines.
GB598524A
(enrdf_load_stackoverflow )
GB734159A
(enrdf_load_stackoverflow )
GB190525156A
(en )
1906-08-23
Improvements in Adding Machines.
GB720088A
(enrdf_load_stackoverflow )
GB191011810A
(en )
1911-03-09
Improvements in Calculating Machines.
GB191108438A
(en )
1912-04-04
Improvements in Recording Adding Machines.
GB743554A
(enrdf_load_stackoverflow )