Document Type and Number:
Japanese Patent JPS4864931
Kind Code:
A
Application Number:
JP12028172A
Publication Date:
September 07, 1973
Filing Date:
November 30, 1972
Export Citation:
International Classes:
G03C7/00; G03C8/42; G03C8/44; (IPC1-7): G03C5/54
Domestic Patent References:
| JP41012184A | ||||
| JP41011907A | ||||
| JP45039235A | ||||
| JP43026690A |
Foreign References:
| US3415644A | 1968-12-10 | |||
| US3415645A | 1968-12-10 |