4. Illumination
  5. Self powered lamp
  6. Rechargeable electrical source of with external connections

Hemming G. Siiberg

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Air operated DC switch

Electricity: circuit makers and breakers – Fluid pressure – Diaphragm
Patent

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Cigar lighter

Electric heating – Heating devices – Resistive element: igniter type
Patent

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Electro-mechanical liquid level sensor

Electricity: circuit makers and breakers – Float – Float and pressure
Patent

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Fluid bilevel sensor

Electricity: magnetically operated switches – magnets – and electr – Permanent magnet-actuated switches
Patent

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Rechargeable flashlight with integral variable rate battery char

Illumination – Self powered lamp – Rechargeable electrical source of with external connections
Patent

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Profile ID: LFUS-PAI-P-869331

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