Document Type and Number:
Japanese Patent JPS5214238
Kind Code:
B2
Application Number:
JP8162471A
Publication Date:
April 20, 1977
Filing Date:
October 18, 1971
Export Citation:
International Classes:
C01B3/50; C01B3/52; C01B21/04; C01C1/04; F25J3/02; F25J3/04; (IPC1-7): C01B2/30; C01B1/26; C01B21/04; F25J3/04