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2. Escalator - Wikipedia

   en.wikipedia.org/wiki/Escalator

   [1] In 1889, Leamon Souder successfully patented the "stairway", an analogous device that featured a "series of steps and links jointed to each other". No model was ever built. [2] This was the first of at least four escalator-style patents issued to Souder, including two for spiral designs. [3]

3. Home Depot - Wikipedia

   en.wikipedia.org/wiki/Home_Depot

   This is an accepted version of this page This is the latest accepted revision, reviewed on 27 February 2025. American multinational home improvement supplies retailing company The Home Depot, Inc. A Home Depot in Onalaska, Wisconsin Company type Public Traded as NYSE: HD DJIA component S&P 100 component S&P 500 component Industry Retail (home improvement) Founded February 6, 1978 ; 47 years ...

4. Stairs - Wikipedia

   en.wikipedia.org/wiki/Stairs

   The alternating stairs (3) requires one unit of space per step: the same as the half-width stairs (2), and half as much as the full-width stairs (1). Thus, the horizontal distance between steps is in this case reduced by a factor of two, reducing the size of each step.

5. Nude Descending a Staircase, No. 2 - Wikipedia

   en.wikipedia.org/wiki/Nude_Descending_a...

   The work, an oil painting on canvas with dimensions of 147 cm × 89.2 cm (57.9 in × 35.1 in) in portrait, seemingly depicts a figure demonstrating an abstract movement in its ochres and browns. The discernible "body parts" of the figure are composed of nested, conical and cylindrical abstract elements, assembled together in such a way as to ...

6. Stair lift - Wikipedia

   en.wikipedia.org/wiki/Stair_lift

   A stair lift is a mechanical device for lifting people, typically those with disabilities, up and down stairs. [1] For sufficiently wide stairs, a rail is mounted to the treads of the stairs. A chair or lifting platform is attached to the rail. A person gets onto the chair or platform and is lifted up or down the stairs by the chair which moves ...

7. Riser clamp - Wikipedia

   en.wikipedia.org/wiki/Riser_clamp

   Riser clamp for a standpipe through-penetration firestop inside a fire hose cabinet under construction. A riser clamp is a type of hardware used by mechanical building trades for pipe support in vertical runs of piping (risers) at each floor level. The devices are placed around the pipe, and integral fasteners are then tightened to clamp them ...

8. Split-level home - Wikipedia

   en.wikipedia.org/wiki/Split-level_home

   A bi-level includes two short sets of stairs and two levels. [2] The entry is between floors. The front door opens to a landing. One short flight of stairs leads up to the top floor; another short flight of stairs leads down. The top floor tends to be full height ceilings with the living room, dining room, kitchen, bedrooms and bathrooms.

9. Relativity (M. C. Escher) - Wikipedia

   en.wikipedia.org/wiki/Relativity_(M._C._Escher)

   27.7 cm × 29.2 cm (10.9 in × 11.5 in) Relativity is a lithograph print by the Dutch artist M. C. Escher , first printed in December 1953. The first version of this work was a woodcut made earlier that same year.