Document Type and Number:
Japanese Patent JPS5390412
Kind Code:
U
Application Number:
JP17801876U
Publication Date:
July 24, 1978
Filing Date:
December 23, 1976
Export Citation:
International Classes:
H04M1/21; H04M1/00; H04M11/06; (IPC1-7): H04M1/00; H04M1/21; H04M11/06