Document Type and Number:
Japanese Patent JPS5540893
Kind Code:
Y2
Application Number:
JP13423775U
Publication Date:
September 25, 1980
Filing Date:
September 30, 1975
Export Citation:
International Classes:
F21V33/00; F21V1/00; G03B21/00; (IPC1-7): F21V33/00; F21V1/00