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trade name Von Duprin, a blend of the three principals surnames, VONnegut, DUpont, PRINzler. In 1910, Vonnegut
Hardware Company began to sell the Von Duprin Safe Exit Device; not long after many public buildings in Indianapolis implemented the panic bar, setting standards that the rest of the nation too would soon follow.
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in
Chicago in 1903 and claimed 600 lives. Many of the deaths were attributed to exit doors being latched and panicked crowds being unable to open inward-swinging doors due to audience members surging forward in an attempt to escape. After patenting this hardware, the device became known under the
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developed the first "panic bar" device for doors which can be pushed to open the door from the inside despite being locked on the outside. This invention was born out of necessity after a fire broke out in the
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in 1982. Two-story masonry and balloon frame house with a front porch and bell-cast gable roof punctuated by two oversized dormers on a corner lot on 4th Ave N in downtown
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DuPont trained for several years under many of the best architects in the
Midwest before he traveled to Paris, France and graduated from the Ecole de Beaux Arts.
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Dupont announced his move to
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Saturday Evening Post - Volume 202 - Page 167 books.google.com/books?id=eCQkAQAAMAAJ Mary Andrews Denison 1929
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254:(Re)constructing the Little Red Schoolhouse: History, Landscape and Memory
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405:"7 inventions Indiana contributed to the world"
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331:"LandmarkHunter.com | Henry H. Dupont"
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365:2024-01-23
337:2014-09-22
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261:References
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75:Von Duprin
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