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

White Metal Rolling & Stamping Corp.

Corporate Assignee

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Corporate Assignee

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Combination step, stair well and extension ladders

Fire escape – ladder – or scaffold – Convertible – Ladder
Patent

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Extension ladders with rotary hook locks

Fire escape – ladder – or scaffold – Ladder – Extension
Patent

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Metal extension planks

Fire escape – ladder – or scaffold – Platform – Relatively movable sections
Patent

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Safety stepladders

Fire escape – ladder – or scaffold – Ladder and platform – Platform with ladder as support
Patent

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Stepladders

Fire escape – ladder – or scaffold – Ladder and platform – Platform with ladder as support
Patent

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Profile ID: LFUS-PAI-P-1188477

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