Document Type and Number:
Japanese Patent JPH02138913
Kind Code:
U
Application Number:
JP4690589U
Publication Date:
November 20, 1990
Filing Date:
April 24, 1989
Export Citation:
International Classes:
H01Q21/06; H01Q1/02; H01Q1/42; H01Q21/24; (IPC1-7): H01Q1/42; H01Q1/02; H01Q21/06; H01Q21/24