Document Type and Number:
Japanese Patent JPS57199805
Kind Code:
U
Application Number:
JP8791881U
Publication Date:
December 18, 1982
Filing Date:
June 17, 1981
Export Citation:
International Classes:
G01B7/00; G01B7/02; G01B7/28; (IPC1-7): G01B7/00; G01B7/02; G01B7/28