4. Stoves and furnaces
  5. Tool having fluid fuel burner
  6. Curling iron

Dennis F. Vanderwerf

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Catadioptric Fresnel lens

Optical: systems and elements – Lens – With multipart element
Patent

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Condenser lens system for overhead projector

Optics: image projectors – Particular condenser
Patent

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Directional front projection screen

Patent

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Distortion correction for an overhead projector system

Optics: image projectors – Unitary plural refracting surfaces
Patent

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Distortion correction for an overhead projector system

Optics: image projectors – Unitary plural refracting surfaces
Patent

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Profile ID: LFUS-PAI-P-327717

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