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Priority to JP381173ApriorityCriticalpatent/JPS5147997B2/ja
Publication of JPS4992897ApublicationCriticalpatent/JPS4992897A/ja
Publication of JPS5147997B2publicationCriticalpatent/JPS5147997B2/ja
A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
A62B1/00—Devices for lowering persons from buildings or the like
A62B1/20—Devices for lowering persons from buildings or the like by making use of sliding-ropes, sliding-poles or chutes, e.g. hoses, pipes, sliding-grooves, sliding-sheets