Document Type and Number:
Japanese Patent JPS54147448
Kind Code:
U
Application Number:
JP4409378U
Publication Date:
October 13, 1979
Filing Date:
April 03, 1978
Export Citation:
International Classes:
G04F5/02; A47B23/00; A47B23/06; (IPC1-7): A47B23/00; G04F5/02