Document Type and Number:
Japanese Patent JPH02140361
Kind Code:
U
Application Number:
JP4727689U
Publication Date:
November 22, 1990
Filing Date:
April 21, 1989
Export Citation:
International Classes:
G01N33/48; G01N1/00; G01N33/52; (IPC1-7): G01N33/48; G01N1/00
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