4. Measuring, testing, or signalling instruments
  5. Security or signal instrument or casing
  6. Lost child or person locator

Chung T. Cheng

Inventor

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Bore sight

Firearms – Implements – Sight devices
Reissue Patent

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Heat source locator

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

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Thermal heat scanner

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

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Profile ID: LFUS-PAI-P-2016020

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