GB1100168A
(en )
1968-01-24
Key operated machine
GB730466A
(https= )
GB1172819A
(en )
1969-12-03
Keyboard Mechanisms.
GB549300A
(en )
1942-11-16
Improvements in or relating to fluid pressure servo devices
Pudi et al.
2003
Generalized closed itemsets for association rule mining
US2451090A
(en )
1948-10-12
Key locking mechanism
GB1515587A
(en )
1978-06-28
Hydraulic amplifier
GB709188A
(https= )
GB617358A
(en )
1949-02-04
Improvements in or relating to machines used in perforating cards for use in statistical machines
GB1243640A
(en )
1971-08-25
Selectively operable mechanism for keyboard operating machines
GB453280A
(https= )
GB1154111A
(en )
1969-06-04
Encoder.
GB660642A
(https= )
GB380106A
(en )
1932-08-26
Improvements in and relating to typewriter-calculating machines controlling card-perforating machines
GB409138A
(en )
1934-04-26
Improvements in or relating to keyboard arrangements for typewriters
GB431961A
(https= )
MX2025013131A
(es )
2026-02-03
Conjuntos indicadores de cerraduras
GB454463A
(https= )
GB899265A
(en )
1962-06-20
Case shift mechanism for keyboard perforator and counter
GB231515A
(https= )
GB442856A
(https= )
GB484821A
(https= )
GB1238707A
(https= )
1971-07-07
GB694698A
(en )
1953-07-22
Improvements in or relating to a ten-key mechanism for an adding machine
Do
2011
An Extension of Product Data Model for Calculating Product-level Carbon Footprint