Document Type and Number:
Japanese Patent JPH02140362
Kind Code:
U
Application Number:
JP4691489U
Publication Date:
November 22, 1990
Filing Date:
April 20, 1989
Export Citation:
International Classes:
G01N33/48; (IPC1-7): G01N33/48
Domestic Patent References:
| JPS585409B2 | 1983-01-31 | |||
| JP47042705U | ||||
| JPS4027512Y1 | ||||
| JPS3626580Y1 |