Document Type and Number:
Japanese Patent JPS4974413
Kind Code:
U
Application Number:
JP11850772U
Publication Date:
June 27, 1974
Filing Date:
October 13, 1972
Export Citation:
International Classes:
H02P1/16; G11B15/10; H02P7/00; (IPC1-7): H02P7/00; G11B15/10