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Priority claimed from DE19681556664external-prioritypatent/DE1556664C3/de
Application filedfiledCritical
Publication of NL6900183ApublicationCriticalpatent/NL6900183A/xx
E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
E06C—LADDERS
E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
E06C9/08—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members
E06C9/12—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members laterally displaceable