133711 ⎘
Power-operated mechanisms for wings using fluid-pressure actuators for vertically-sliding wings
Sub-classes:PORTABLE BARRICADE AND PORTABLE BARRICADE SYSTEM
#2Switch arrangements for powered doors
#3Portable barricade and portable barricade system
#4Automatic auto-sensing flood protection roller shutter with auto-locating reinforced column
#5Closure device for the vacuum-tight closure of an opening in a wall
#6CROP HAULING BED LOADING PANEL
#7Railway passenger gate assembly
#8Hydraulic systems and methods thereof