GB338990A
(enrdf_load_stackoverflow )
US1556184A
(en )
1925-10-06
Simple repeater mechanism for clocks and watches
US1944994A
(en )
1934-01-30
Clutching device
US2678160A
(en )
1954-05-11
Key-responsive recording
US2221686A
(en )
1940-11-12
Calculating machine
GB334727A
(enrdf_load_stackoverflow )
GB191417079A
(en )
1915-07-19
Improvements in Calculating Machines.
US982606A
(en )
1911-01-24
Adding type-writer.
GB265134A
(enrdf_load_stackoverflow )
US2391098A
(en )
1945-12-18
Calculating machine
US1522781A
(en )
1925-01-13
Lock
GB431961A
(enrdf_load_stackoverflow )
GB672771A
(enrdf_load_stackoverflow )
US1773025A
(en )
1930-08-12
chase
GB551311A
(enrdf_load_stackoverflow )
GB608989A
(en )
1948-09-23
Improvements in calculating machines
GB712751A
(enrdf_load_stackoverflow )
GB370662A
(enrdf_load_stackoverflow )
GB191511254A
(en )
1916-08-04
Improvements in Combined Typewriting and Computing Machines.
GB295632A
(enrdf_load_stackoverflow )
GB217107A
(enrdf_load_stackoverflow )
GB487494A
(enrdf_load_stackoverflow )
GB954817A
(enrdf_load_stackoverflow )
GB567374A
(enrdf_load_stackoverflow )
GB464746A
(enrdf_load_stackoverflow )