Document Type and Number:
Japanese Patent JPS4429189
Kind Code:
Y1
Application Number:
JP9923265U
Publication Date:
December 03, 1969
Filing Date:
December 08, 1965
Export Citation:
International Classes:
G03B7/12; G03B9/07; G03B19/12; (IPC1-7): G03B7/00; G03B9/07; G03B19/12