bulletproof glass is imported in cars (1 ene 1930 año – 14 jun 1935 año)
Descripción:
 bullet proof began implanted in cars but due to its high cost. it was limited to criminals and upper class. 
Añadido al timeline:
fecha:
1 ene 1930 año
14 jun 1935 año
 ~ 5 years and 5 months