DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS, IN GENERAL; LADDERS

Description

Class E06 encompasses the structural design, construction, and operation of door and window systems, including shutters and roller blinds used for closure, ventilation, light control, or security purposes. It covers the mechanical components, frames, hinges, fastening systems, and actuation mechanisms for these building elements. The class also includes portable or fixed ladders for access and climbing purposes. Adjacent specialized applications, such as doors or windows for specific industrial equipment or vehicles, are typically classified elsewhere in their respective technical fields.