Document Type and Number:
Japanese Patent JPH0339785
Kind Code:
Y2
Application Number:
JP428482U
Publication Date:
August 21, 1991
Filing Date:
January 16, 1982
Export Citation:
International Classes:
G03B21/00; G03B21/11; G03B23/00; (IPC1-7): G03B21/11
Next Patent: DRIVING CIRCUIT