|
GB743883A
|
|
Improvements relating to self-closing doors for lifts
|
|
GB652345A
|
|
Improvements in lift doors
|
|
GB649437A
|
|
Improvements relating to lifts
|
|
GB655824A
|
|
Improvements in the operation of lift gates and doors
|
|
GB584343A
|
|
Improvements relating to lifts
|
|
GB526110A
|
|
Lifts
|
|
GB443037A
|
|
Improvements relating to sliding doors
|
|
GB426568A
|
|
Lift position indicators
|
|
GB388800A
|
|
Improvements in or relating to locks suitable for use in entrances to lift shafts
|
|
GB312393A
|
|
Improvements in lifts, hoists and the like
|
|
GB243849A
|
|
Improvements in variable speed gear
|
