4. Communications: electrical
  5. Traffic control indicator
  6. Portable

Grant Tsao

Inventor

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Automobile electronic alarm device

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

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Motion sensitive switch and circuitry

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

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Warning light adapted for use with a stop sign

Communications: electrical – Traffic control indicator – Portable
Patent

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Profile ID: LFUS-PAI-P-907156

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