VENTILATION STRUCTURE FOR REMODELING

PROBLEM TO BE SOLVED: To provide a ventilation structure for remodeling easily and inexpensively performing remodeling to an incombustible material by using an existing ventilation duct. SOLUTION: The ventilation structure for remodeling includes: a new sleeve 2 internally provided on the inner side...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	TOKUNO EIJI
Format:	Patent
Sprache:	eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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