Document Type and Number:
Japanese Patent JPS4831393
Kind Code:
U
Application Number:
JP7574971U
Publication Date:
April 17, 1973
Filing Date:
August 23, 1971
Export Citation:
International Classes:
G01N21/89; D06H3/08; G01N21/898; (IPC1-7): D06H3/08; G01N21/32