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

George W. Thorpe

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Fluid sterilization apparatus

Liquid purification or separation – Processes – Utilizing electrical or wave energy directly applied to...
Reexamination Certificate

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Foldable ladder

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

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Internal UV treatment of potable water systems

Liquid purification or separation – With means to add treating material – With distinct reactor tank – trough or compartment
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2003813

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