Document Type and Number:
Japanese Patent JPH0464762
Kind Code:
U
Application Number:
JP10777990U
Publication Date:
June 03, 1992
Filing Date:
October 15, 1990
Export Citation:
International Classes:
G01N21/88; G01N21/89; G02B6/08; (IPC1-7): G01N21/88; G01N21/89; G02B6/08
Next Patent: JPH0464763