Document Type and Number:
Japanese Patent JPS5641975
Kind Code:
B2
Application Number:
JP5328673A
Publication Date:
October 01, 1981
Filing Date:
May 14, 1973
Export Citation:
International Classes:
B41B19/00; G02B5/32; G02B27/00; G02F1/01; G03H1/00; G09F9/30; G09F13/00