Document Type and Number:
Japanese Patent JPH0214292
Kind Code:
Y2
Application Number:
JP3988981U
Publication Date:
April 18, 1990
Filing Date:
March 19, 1981
Export Citation:
International Classes:
G01R29/18; H02H3/34; H02H3/353; H02H11/00; (IPC1-7): H02H11/00