Document Type and Number:
Japanese Patent JPS5228777
Kind Code:
U
Application Number:
JP11566675U
Publication Date:
February 28, 1977
Filing Date:
August 22, 1975
Export Citation:
International Classes:
F28F1/40; F28D7/00; F28F13/00; (IPC1-7): F28D7/00; F28F13/00
Domestic Patent References:
| JPS4828766B1 | 1973-09-04 | |||
| JP50068961B | ||||
| JP17013208Y1 | ||||
| JPS4821987A |