Document Type and Number:
Japanese Patent JPS56123737
Kind Code:
U
Application Number:
JP1604681U
Publication Date:
September 21, 1981
Filing Date:
February 09, 1981
Export Citation:
International Classes:
G01R31/327; G01R31/333; H02H3/16; H02H3/33; (IPC1-7): H02H3/33; G01R31/32; H02H3/16