Document Type and Number:
Japanese Patent JPS5443977
Kind Code:
U
Application Number:
JP11777877U
Publication Date:
March 26, 1979
Filing Date:
September 01, 1977
Export Citation:
International Classes:
G10K11/02; G10K9/00; G10K9/18; (IPC1-7): G10K9/00; G10K9/18; G10K11/02