Document Type and Number:
Japanese Patent JPS57113555
Kind Code:
U
Application Number:
JP19030880U
Publication Date:
July 14, 1982
Filing Date:
December 29, 1980
Export Citation:
International Classes:
H04B3/02; H03K19/00; H03K19/0175; H04L25/02; (IPC1-7): H04L25/02; H03K19/00; H04B3/02; H04L11/00