Document Type and Number:
Japanese Patent JPS5217732
Kind Code:
Y2
Application Number:
JP9578271U
Publication Date:
April 21, 1977
Filing Date:
October 15, 1971
Export Citation:
International Classes:
H01F7/16; H01F5/02; H01H50/44; (IPC1-7): H01H50/44; H01F5/02