Document Type and Number:
Japanese Patent JPS5216988
Kind Code:
Y2
Application Number:
JP5440472U
Publication Date:
April 16, 1977
Filing Date:
May 10, 1972
Export Citation:
International Classes:
A47B88/04; A47B88/00; A47B88/493; G01L21/00; (IPC1-7): A47B88/00