Document Type and Number:
Japanese Patent JPS6228193
Kind Code:
U
Application Number:
JP11879685U
Publication Date:
February 20, 1987
Filing Date:
July 31, 1985
Export Citation:
International Classes:
G04B47/04; G04F10/00; G04G21/00; H01H13/02; H01H13/04; (IPC1-7): G04G1/00; G04B47/04; G04F10/00; H01H13/04
Domestic Patent References:
| JP58195892B | ||||
| JP59195589B | ||||
| JPS622381B2 | 1987-01-19 |