Title:
【考案の名称】換気装置の熱交換器
Document Type and Number:
Japanese Patent JPS58137935
Kind Code:
U
Inventors:
Sumio Ohata
Application Number:
JP3471382U
Publication Date:
September 16, 1983
Filing Date:
March 12, 1982
Export Citation:
International Classes:
F24F7/08; F28F9/00; (IPC1-7): F24F7/08; F28F9/00