Document Type and Number:
Japanese Patent JPS5057223
Kind Code:
A
Application Number:
JP10523773A
Publication Date:
May 19, 1975
Filing Date:
September 18, 1973
Export Citation:
International Classes:
G03C11/08; G03C11/00; (IPC1-7): G03C7/40; G03C11/08
Domestic Patent References:
| JPS2610061Y1 | ||||
| JP33008891A | ||||
| JP37002245A | ||||
| JPS4828294A | 1973-04-14 |