Portable public telephone system
A portable public telephone system is composed of network manage center, extension line for public telephone, connection of public telephone and numbered potable telephone set, and features that the portable numbered telephone set is carried about by user himself and can be used when a connection of...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A portable public telephone system is composed of network manage center, extension line for public telephone, connection of public telephone and numbered potable telephone set, and features that the portable numbered telephone set is carried about by user himself and can be used when a connection of public telephone is found. Its connection is steel plate embedding type, thus avoiding artificial damage. |
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