33
/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
August 1, 2025
5234437
475510
2

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

Description:

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

Added to timeline:

Date:

mar 31, 1958
Now
~ 67 years ago

Images: