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Home and Garden → Home maintenance → Home construction
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  • Official Know-It-All
    John H. Balsley of Dayton, Ohio acquired the first U.S. step ladder patent in 1862. Although more antiquated step ladders existed prior to this time, Balsley's invention included hinges at the top of the ladder, making it foldable for convenient storage.

    Source:

    Ohio History Central: Step Ladder

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