4. Television
  5. Two-way video and voice communication
  6. Conferencing

Liu Fang

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Method for calling video communication service by video...

Television – Two-way video and voice communication – Conferencing
Reexamination Certificate

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Sensing chip

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Structured visual or optical indicator – per se
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3242311

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