Document Type and Number:
Japanese Patent JPS5020893
Kind Code:
Y1
Application Number:
JP474770U
Publication Date:
June 24, 1975
Filing Date:
January 13, 1970
Export Citation:
International Classes:
A47B81/00; A47B45/00; A47B46/00; (IPC1-7): A47B45/00; A47B81/00