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Plastics are of either synthetic compounds or of a more natural nature. When were they first invented?

2007-01-02 07:19:47 · 1 answers · asked by whitsky2001 1 in Science & Mathematics Engineering

1 answers

1909. See reference below.

2007-01-02 07:29:50 · answer #1 · answered by loggrad98 3 · 0 0

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