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B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
B27N3/08—Moulding or pressing
B27N3/28—Moulding or pressing characterised by using extrusion presses
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FR828335D1937-03-151937-10-27
Process and apparatus for the manufacture of boards for building and for insulation
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