Document Type and Number:
Japanese Patent JPS56155507
Kind Code:
U
Application Number:
JP5290780U
Publication Date:
November 20, 1981
Filing Date:
April 18, 1980
Export Citation:
International Classes:
H01Q17/00; H01Q19/13; (IPC1-7): H01Q19/13; H01Q17/00
Domestic Patent References:
| JPS5121544B1 | 1976-07-03 |
Foreign References:
| US3209360A | 1965-09-28 | |||
| US3176301A | 1965-03-30 |