Document Type and Number:
Japanese Patent JPS4974211
Kind Code:
A
Application Number:
JP11539772A
Publication Date:
July 17, 1974
Filing Date:
November 17, 1972
Export Citation:
International Classes:
C04B35/14; C04B35/18; C04B38/00; C04B38/08; (IPC1-7): C04B35/18