Document Type and Number:
Japanese Patent JPS5245917
Kind Code:
B1
Application Number:
JP1188968A
Publication Date:
November 19, 1977
Filing Date:
February 23, 1968
Export Citation:
International Classes:
H01F1/11; G11B5/00; H01F1/00; (IPC1-7): H01F1/00; G11B5/00