Document Type and Number:
Japanese Patent JPH0117291
Kind Code:
B2
Inventors:
KANEKO TAKAO
KIKUCHI HIROYUKI
KIKUCHI HIROYUKI
Application Number:
JP7901981A
Publication Date:
March 29, 1989
Filing Date:
May 25, 1981
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
H03H19/00
Next Patent: JPH0117292