4. Fire escape, ladder, or scaffold
  5. Convertible

Robert M. Rinke

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Insertable swimming pool step assembly

Static structures (e.g. – buildings) – Stepped; e.g. – stair – With additional building feature
Patent

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Pool ladder

Building units and construction elements – Stair – ladder – scaffold – or similar support – Stepped
Patent

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Portable swimming pool step device

Fire escape – ladder – or scaffold – Convertible
Patent

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Retractable walk-in swimming pool ladder

Fire escape – ladder – or scaffold – Wall- or floor-attached – Ladder
Patent

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Profile ID: LFUS-PAI-P-315136

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