There was an old shotshells manufacturer close to my city.
The name was DE Garkovenko.
(two topics have been talking about the special loading he was selling : special buck shot consisting of a big ball tied to other smaller balls).
I got the following info:
the first patent of these special buckshots was taken in Russian (this guy came from Russia in 1918)
In 1947 (or 1948) he sold to an US manufacturer the patent for star crimp shotshells.
In which year are the first star crimp shotshells?