Document Type and Number:
Japanese Patent JPS5435655
Kind Code:
U
Application Number:
JP10894777U
Publication Date:
March 08, 1979
Filing Date:
August 15, 1977
Export Citation:
International Classes:
C03B37/018; C03B37/00; C03C17/02; G02B6/00; (IPC1-7): G02B5/14; C03B37/00; C03C17/02