Document Type and Number:
Japanese Patent JPH0351387
Kind Code:
U
Application Number:
JP11305989U
Publication Date:
May 20, 1991
Filing Date:
September 27, 1989
Export Citation:
International Classes:
G01R31/319; G01R31/28; H03K5/00; (IPC1-7): G01R31/28; G01R31/28; H03K5/00