|
ITBO930233A1
|
|
Unit for extracting polluting gases from closed environments
|
|
IT8903665D0
|
|
System of elements for the realization of canalisation, in collector installations for extraction of polluted gas from closed areas
|
|
IT8903482D0
|
|
Equipment for the supply of pneumatic and / or electrical energy to one or more workstations.
|
|
EP0261359A1
|
|
Fan for removing exhaust gases generated by motor-vehicles
|
|
EP0194609A2
|
|
Apparatus for drawing gas out of closed spaces, such as automobil workshops and garages
|
|
EP0125570A2
|
|
Device for collecting dust or noxions fumes
|
