Document Type and Number:
Japanese Patent JPS5329143
Kind Code:
Y2
Application Number:
JP10478173U
Publication Date:
July 21, 1978
Filing Date:
September 06, 1973
Export Citation:
International Classes:
G03B13/26; G03B13/02; G03B13/06; G03B19/02; G03B19/12; (IPC1-7): G03B13/06; G03B19/02