Document Type and Number:
Japanese Patent JPS57198144
Kind Code:
U
More Like This:
Application Number:
JP8620581U
Publication Date:
December 16, 1982
Filing Date:
June 13, 1981
Export Citation:
International Classes:
H04H40/36; H04H1/00; (IPC1-7): H04H5/00
Domestic Patent References:
JPS5736055B2 | 1982-08-02 | |||
JPS5736056B2 | 1982-08-02 |
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