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기록
A FIRE-RATED VENTILATION DUCT AND A METHOD OF MANUFACTURING AND/OR INSTALLING SUCH VENTILATION DUCT IN A FIRE-RATED VENTILATION DUCT STRUCTURE PENETRATION ARRANGEMENT
발명심사 중
§ Ⅰ
개요
발명자
PEDERSEN, Kurt Munk; RÖDENBERGER, Jürg Dieter Stefan; THOMA, Markus
출원일
Feb 28, 2024
공개일
Jan 6, 2026
IPC 분류
F24FF16LF16LF16LF24F
CPC 분류
F24FF24FF24FF24F2221/30F16LF16LF16L