4. Fire escape, ladder, or scaffold
  5. Ladder
  6. Slidable nested single rung units

Mitchell I. Kieffer

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Extending ladder and associated manufacturing methods

Fire escape – ladder – or scaffold – Ladder – Slidable nested single rung units
Reexamination Certificate

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Extending ladder and associated manufacturing methods

Fire escape – ladder – or scaffold – Ladder – Slidable nested single rung units
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Extending ladder and associated manufacturing methods

Fire escape – ladder – or scaffold – Ladder – Slidable nested single rung units
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Telescoping ladder rung

Building units and construction elements – Stair – ladder – scaffold – or similar support – Element or attachment
Design Patent

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Profile ID: LFUS-PAI-P-2686498

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