Document Type and Number:
Japanese Patent JPS61143137
Kind Code:
U
Application Number:
JP2483485U
Publication Date:
September 04, 1986
Filing Date:
February 25, 1985
Export Citation:
International Classes:
G03B7/24; G03B17/28; G03B17/30; (IPC1-7): G03B17/28; G03B7/24
Domestic Patent References:
| JPS616823B2 | 1986-03-01 |