|
US2912123A
|
|
Luffing crane
|
|
GB786621A
|
|
Improvements in and relating to cranes
|
|
GB772722A
|
|
Improvements in or relating to moving stairways
|
|
GB738410A
|
|
Improvements in and relating to luffing cranes
|
|
GB704914A
|
|
Electric motor provided with a brake
|
|
GB687222A
|
|
Improvements in electric motor driven brake actuators
|
|
GB685254A
|
|
Hoist for lifting or lowering comparatively small loads at different speeds
|
|
GB682739A
|
|
Improvements in hoists
|
|
GB663149A
|
|
Improvements in or relating to devices for producing an actuating impulse
|
|
US1999936A
|
|
Lifting device
|
|
GB432861A
|
|
Improvements in and relating to mechanism for lifting floating bodies
|
|
GB433392A
|
|
Improvements in and relating to mechanism for lifting floating bodies
|
