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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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29 jul 1947 año - Otis Ray McIntire invents foam polystyrene, the material from which "styrofoam" cups are actually made.
Añadido al timeline:
Styrofoam cup timeline
By
Emma Kushnerock
8 oct 2017
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0
509
fecha:
29 jul 1947 año
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~ 78 years ago
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