4. Recording, communication, or information retrieval equipment
  5. Video or audio transmission, recording or playback equipment
  6. Telephone equipment

Raymond G. Oja

Inventor

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Child proximity monitor

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Lost child or person locator
Design Patent

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Personal rescue device

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent

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Tracking device

Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1979337

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