Document Type and Number:
Japanese Patent JPS63178890
Kind Code:
U
More Like This:
Application Number:
JP7110087U
Publication Date:
November 18, 1988
Filing Date:
May 13, 1987
Export Citation:
International Classes:
G02B6/04; G09F13/00; (IPC1-7): G09F13/00; G02B6/04
Domestic Patent References:
JP50087890B | ||||
JP49138791B |