Document Type and Number:
Japanese Patent JPS4817905
Kind Code:
Y1
Application Number:
JP5543368U
Publication Date:
May 22, 1973
Filing Date:
June 28, 1968
Export Citation:
International Classes:
G10K9/22; G10K9/12; G10K9/15; G10K9/18; (IPC1-7): G10K9/18