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29 nov 1992 anni - Patent Granted for Modern Bulletproof Glass

Descrizione:

field by William P Stephenson, this patent is alternating sheets of slightly flexible polycarbonates and glass

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IED Timeline

ByCaden Iwanski

5 ott 2018

0

1

314

Data:

29 nov 1992 anni

Adesso

~ 32 years ago

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