4. Fire escape, ladder, or scaffold
  5. Unitary foldable, rigid scaffold or ladder
  6. Collapsible ladder

Irving Schaffer

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Adjustable arm for a desk lamp

Lighting – Light fixture – Articulated or adjustable
Patent

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Ambulatory intravenous delivery system

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent

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Foldable step stool

Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Collapsible ladder
Patent

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Lamp for a work station

Lighting – Light fixture – Articulated or adjustable
Patent

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LED traffic light with individual LED reflectors

Illumination – Plural light sources – With modifier
Reexamination Certificate

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Profile ID: LFUS-PAI-P-283782

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