Document Type and Number:
Japanese Patent JPS56154187
Kind Code:
U
Application Number:
JP5115180U
Publication Date:
November 18, 1981
Filing Date:
April 15, 1980
Export Citation:
International Classes:
H04H20/00; H04H20/59; H05K5/03; (IPC1-7): H05K5/03; H04H1/00