Document Type and Number:
Japanese Patent JPS5512791
Kind Code:
Y2
Application Number:
JP3019875U
Publication Date:
March 21, 1980
Filing Date:
March 07, 1975
Export Citation:
International Classes:
D06F57/12; D06F53/04; D06F57/00; (IPC1-7): D06F57/00; D06F57/12