Document Type and Number:
Japanese Patent JPS63191302
Kind Code:
U
Application Number:
JP7985787U
Publication Date:
December 09, 1988
Filing Date:
May 28, 1987
Export Citation:
International Classes:
G02B6/24; (IPC1-7): G02B6/24
Domestic Patent References:
JPS59131709U | 1984-09-04 | |||
JPS59139011A | 1984-08-09 | |||
JPS5232339U | 1977-03-07 | |||
JPS5840515A | 1983-03-09 | |||
JPS5232335U | 1977-03-07 |