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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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10 mayo 1897 año - fire escape invented

Descripción:

The first outdoor fire escape with an external staircase was patented by Anna Connelly in 1897. In the 1900s, Connelly’s model would become part of many mandatory building safety codes across the United States.

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Inventions by women!

ByLauren Herzig
8 dic 2017
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fecha:

10 mayo 1897 año
Ahora mismo
~ 128 years ago
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