Document Type and Number:
Japanese Patent JPS5647992
Kind Code:
B2
Application Number:
JP9972776A
Publication Date:
November 12, 1981
Filing Date:
August 23, 1976
Export Citation:
International Classes:
D21F7/08; D03D1/00; D03D15/00; D03D15/02; D04H1/488; D21F1/00