by clamping bars

Full Title

Screening or protective devices for openings, with or without operating or securing mechanisms; Closures of similar construction > Shutters, movable grilles, or other safety closing devices, e.g. against burglary > Roll-type closures > Roller shutters > Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings > Rollers therefor; Fastening roller shutters to rollers > by clamping bars

Classification Context

Section:

FIXED CONSTRUCTIONS

Class:

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

Subclass:

FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES