Document Type and Number:
Japanese Patent JPS50115028
Kind Code:
A
Application Number:
JP1930774A
Publication Date:
September 09, 1975
Filing Date:
February 18, 1974
Export Citation:
International Classes:
G03C7/00; G03C1/00; G03C1/06; G03C1/498; (IPC1-7): G03C1/06; G03C7/00
Domestic Patent References:
| JPS4911677A | 1974-02-01 | |||
| JPS50105137A | 1975-08-19 |