PETRACHE POENARU - The Fountain Pen inventor. Poenaru, who had studied in Paris and Vienna and, later, completed his specialized studies in England, was a mathematician, physicist, engineer, inventor. While a student in Paris, Petrache Poenaru invented the world's first fountain pen, an invention for which the French Government issued a patent on 25 May 1827.
Ioan C. Cantacuzino (Romanian pronunciation: [iˈo̯an kantakuziˈno], also Ion Cantacuzino; November 25, 1863 – January 14, 1934) was a renowned Romanian physician and bacteriologist, a professor at the Romanian School of Medicine and Pharmacy and a member of the Romanian Academy. He was the founder of the fields of microbiology and experimental medicine in Romania, and creator of the Ioan Cantacuzino Institute.
Stabiloplan Tip IV (1933) - flying wing by Romanian inventor Filip Mihail