4. Electric heating
  5. Heating devices
  6. Tool or instrument

David L. Johns

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Battery powered cautery with improved protective cover arrangeme

Electric heating – Heating devices – Tool or instrument
Patent

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Extended illuminator

Lighting – Light fixture – Hand-held – body-attached or lantern type
Patent

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Pen light

Illumination – Self powered lamp – Cylindrical flashlight casing
Patent

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Variable alternating current output nerve locator/stimulator

Surgery – Truss – Pad
Patent

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Profile ID: LFUS-PAI-P-235319

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