4. Mechanical guns and projectors
  5. Spring
  6. Elastic band

Gilbert Kivenson

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Catapult construction

Mechanical guns and projectors – Spring – Elastic band
Patent

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Counterfeit detector for paper currency

Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
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Level sensor for stored fluids and particulate material

Measuring and testing – Liquid level or depth gauge
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Profile ID: LFUS-PAI-P-925844

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