Document Type and Number:
Japanese Patent JPS5217731
Kind Code:
Y2
Application Number:
JP9578071U
Publication Date:
April 21, 1977
Filing Date:
October 15, 1971
Export Citation:
International Classes:
H01F7/16; H01F7/06; H01H50/20; H01H50/30; H01H50/36; (IPC1-7): H01H50/20; H01F7/06; H01H50/36