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Home › Communication system for interactive services with a packet switching interaction channel over a narrow-band circuit switching network, as well as a device for application in such a communication system

Communication system for interactive services with a packet switching interaction channel over a narrow-band circuit switching network, as well as a device for application in such a communication system

US Patent 5930250 · Granted Jul 27, 1999

Estimated economic value: $2,316,000 ⓘ

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