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

Robert C. Kochem

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Detector apparatus

Electricity: electrical systems and devices – Safety and protection of systems and devices – With tuned circuit
Patent

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Folding sawhorse

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

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Motor protector circuit

Electricity: electrical systems and devices – Safety and protection of systems and devices – Motor protective condition responsive circuits
Patent

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Wiring concentrator for data networks

Communications: electrical – Continuously variable indicating – With meter reading
Patent

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Wiring concentrator for data networks

Communications: electrical – Continuously variable indicating – With meter reading
Patent

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Profile ID: LFUS-PAI-P-1359025

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