|5687816||Underground storage space|
In an underground storage space, particularly for endangered goods, access is effected via a left the opening of which, leading into the storage space, can be closed by two covers which are arranged spaced apart from each other....
|5573085||Waste collection device|
Waste collection device that includes a pit provided with a lid that has waste insertion pillars and with a lifting unit that is suitable to move at least one waste container; the device is characterized in that the monolithic lid is pivoted to the edge o...
|5377783||Elevator door drive|
An elevator drive, which moves an arcuate car door attaching to a support that rotates about an axis, has a motor having an output, an arm attached to the output, and a linkage having a first coupling allowing compound motion attached to the arm and a sec...