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31 mar 1958 año - C-4 patented by Phillips Petroleum Company

Descripción:

Phillips Petroleum Company patented C-4, which was a plastic explosive used both in every conflict following.

Añadido al timeline:

CH 345 - Polymer Themed

ByMitch Amoriello

19 abr 2021

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636

fecha:

31 mar 1958 año

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~ 67 years ago

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