movable out of one plane into a second parallel plane

Full Title

Suspension arrangements for wings > for wings sliding horizontally more or less in their own plane > movable out of one plane into a second parallel plane

Classification Context

Section:

FIXED CONSTRUCTIONS

Class:

LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES

Subclass:

HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS