Document Type and Number:
Japanese Patent JPS4722302
Kind Code:
U
Application Number:
JP2438171U
Publication Date:
November 13, 1972
Filing Date:
April 05, 1971
Export Citation:
International Classes:
F28F17/00; F22D1/32; F28F9/22; (IPC1-7): F22D1/32; F28D7/06; F28F17/00