Document Type and Number:
Japanese Patent JPS5720156
Kind Code:
Y2
Application Number:
JP17224777U
Publication Date:
April 28, 1982
Filing Date:
December 20, 1977
Export Citation:
International Classes:
D06F37/12; D06F17/10; D06F37/00; D06F39/06; D06F39/10; (IPC1-7): D06F39/06