4. Amusement devices
  5. Illusion or stage device
  6. Illusion caused by apparent levitation

John Gaughan

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DC ground fault detecting apparatus with an auto-null circuit an

Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of ground fault indication
Patent

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Immobilizer coil attachment

Communications: electrical – Land vehicle alarms or indicators – Of burglary or unauthorized use
Reexamination Certificate

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Levitation apparatus

Amusement devices – Illusion or stage device – Illusion caused by apparent levitation
Patent

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Profile ID: LFUS-PAI-P-1596580

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