Folding Step Ladder

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A ladder is an inclined set of steps, hinged in the middle to form an inverted V, with stays to keep the two havles at a fixed angle.

Keywords

bridge, ladder, vertical, steps, platform, rungs, extension

Galleries

Ladders

Source

Government Printing Office The Official Gazette of the United States Patent Office (Washington, DC: Government Printing Office, 1895)

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