Title:
【考案の名称】防火ダンパ
Document Type and Number:
Japanese Patent JPS59110843
Kind Code:
U
Inventors:
Nagao Masashi
Application Number:
JP382783U
Publication Date:
July 26, 1984
Filing Date:
January 13, 1983
Export Citation:
International Classes:
F24F13/15; A62C2/12; F24F13/14; (IPC1-7): F24F13/14; A62C3/14