Magnetic door holder

Manual disconnect apparatus and method

Manually controlled pavered apparatus for directing the...

Manually operable sash lift for motorized double hung window

Mass transit vehicle door control apparatus

Means for closing doors for elevator shafts

Means for releasing the fastening of metallic parts in case...

Means of retarding the descent of fire curtains

Mecanisme de leve-glace electrique

Mechanical actuator for a multi-position window

Mechanical device for maintaining a door, and in particular...

Mechanism for moving a sliding door of a railway car

Mechanism for selectively operating and locking a pivotable...

Mechanism for the fast opening and closing of a sectional...

Metallic rolling shutter

Metallic rolling shutter

Method and apparatus for automatically establishing control...

Method and apparatus for closing a door

Method and apparatus for door operation remote control

Method and apparatus for dynamic braking of a barrier operator