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E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
E06B3/70—Door leaves
E06B3/7015—Door leaves characterised by the filling between two external panels
E06B3/7017—Door leaves characterised by the filling between two external panels of grating type
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FR967575D1948-06-141948-06-14
Manufacturing process for doors with frame and frames forming a rigid assembly
ExpiredFR967575A
(en)