Document Type and Number:
Japanese Patent JPS4722301
Kind Code:
U
Application Number:
JP2285071U
Publication Date:
November 13, 1972
Filing Date:
March 30, 1971
Export Citation:
International Classes:
F22B7/12; F22D1/02; F22D1/24; (IPC1-7): F22D1/24; F22B7/12