Document Type and Number:
Japanese Patent JPS5323236
Kind Code:
U
Application Number:
JP6051777U
Publication Date:
February 27, 1978
Filing Date:
May 12, 1977
Export Citation:
International Classes:
G03B31/04; G03B31/00; (IPC1-7): G03B31/00
Domestic Patent References:
| JP37011637A | ||||
| JP30000030A |