4. Telecommunications
  5. Transmitter and receiver at same station
  6. Radiotelephone equipment detail

Jack Wen

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Collision avoidance signal

Communications: electrical – Selective – Having indication or alarm
Patent

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Shock-absorbing device for footwear

Boots – shoes – and leggings – Soles – Spring heel
Patent

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Transceiver with RF loopback and downlink frequency scanning

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent

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Profile ID: LFUS-PAI-P-744850

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