Document Type and Number:
Japanese Patent JPS52114245
Kind Code:
U
Application Number:
JP2172776U
Publication Date:
August 30, 1977
Filing Date:
February 27, 1976
Export Citation:
International Classes:
H02H3/26; G01R31/02; H02H3/28; (IPC1-7): H02H3/28; G01R31/02