|
GB989868A
|
|
Electromagnetically released expanding brake
|
|
GB1036736A
|
|
Electromagnetically actuated clutch
|
|
GB943587A
|
|
Permanent-magnetic chuck
|
|
GB982651A
|
|
Apparatus for supplying energising current to direct-current electro-magnets
|
|
GB916726A
|
|
Electromagnetically released multi-disc brake
|
|
GB922036A
|
|
Electromagnetically released spring brake
|
|
GB931832A
|
|
Improvements in electro-magnetic torque transmitters
|
|
US3017139A
|
|
Ring airfoil aircraft
|
|
GB900095A
|
|
Air-craft having an annular wing and a propulsion means fitted into the latter
|
|
GB837638A
|
|
Electro-magnetic clutch
|
