发明公开
EP1919849A1 AMELIORATION DE LA CONCEPTION ET CONSTRUCTION DES DALLES AERAULIQUES 审中-公开
提高设计和改进LUFTVENTILATIONSTONRÖHREN施工

AMELIORATION DE LA CONCEPTION ET CONSTRUCTION DES DALLES AERAULIQUES
摘要:
The invention concerns the optimization of the design, manufacture and insertion of air ventilation pipes equipping air ventilation tiles and their associated plugs.
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