Document Type and Number:
Japanese Patent JPS4739573
Kind Code:
Y1
Application Number:
JP9842668U
Publication Date:
November 30, 1972
Filing Date:
November 13, 1968
Export Citation:
International Classes:
H01F37/00; H01F27/24; H01F38/08; (IPC1-7): H01F27/24; H01F31/06; H01F37/00