Document Type and Number:
Japanese Patent JPS50156437
Kind Code:
A
Application Number:
JP6482474A
Publication Date:
December 17, 1975
Filing Date:
June 06, 1974
Export Citation:
International Classes:
G03C7/00; G03C5/50; G03C7/20; G03C7/26; (IPC1-7): G03C5/50; G03C7/20