Biró immediately visualized the pen or "Birome" when some children played with balls in the street and one of them crossed a puddle, leaving a trail of dirty water on the asphalt. With the same principle, he invented the deodorant ball, among his other 30 patents, which include the automatic gearbox and a device to obtain energy from the waves of the sea. Most of them are still used without major changes so far. Ladislao Biro patented a prototype in Hungary and France in 1938, but did not market it. That same year, Agustín Pedro Justo, who a few months before had ceased to be president of the Argentine Nation, invited him to settle in his country when he happened to meet him at a time when Biro was in Yugoslavia making notes for a Hungarian newspaper. Agustín Justo saw him writing with a prototype of the pen and amazed by that way of writing he began to chat with him. Biro told him about the difficulty of getting a visa and Justo, who had not told him who he was, gave him a card with his name. Biro was not decided at that time to travel to Argentina, but in May 1940, at the beginning of World War II, he and his brother emigrated to that country along with Juan Jorge Meyne, his partner and friend, who helped him escape from Nazi persecution for its Jewish origin.7 Later his wife Elsa and his daughter Mariana would also disembark in Buenos Aires. In that same year they formed the company Biro Meyne Biro and in a garage with forty workers and a low budget perfected his invention, registering on June 10, 1943 a new patent in Buenos Aires. They launched the new product to the market under the commercial name of Birome (acronym formed by the initial syllables of Biro and Meyne). At first, the booksellers considered that these "ink pens" were too cheap to be sold as a work tool and sold as toys for children.7 In this regard, in his last interview before his death, Biro said: "My" toy "He left thirty-six million dollars in the Argentine treasury, money that the country earned selling products not of the land but of the brain." When they began to promote themselves, they were called "spherical pen" and it was emphasized that it was always loaded, it dried up in the act, it allowed to make copies with carbon paper, it was unique for aviation and its ink was indelible. In 1943 he licensed his invention in the then extraordinary sum of 2 000 000 dollars to the writing instrument company Eversharp, of the United States, which was acquired in turn by the company Parker Pen Company, which installed its plant in Argentina and its commercial offices in which occupied Birome, and in 1951 to Marcel Bich, of France. The latter developed, under the Bic brand, a low-cost pen that contributed greatly to the popularization of the invention. In 1945 the United States Air Force placed an order for 20,000 units. Biro had not patented his invention in the United States, which provoked strong competition. In the same year Milton Reynolds developed his own model, and Franz Seech invented the ink that dries in contact with the air, commercially known as Paper Mate. The company formed by Biro and its partners went bankrupt, suffering from lack of financing and new inventions that did not have commercial success. A former supplier, Francisco Barcelloni, regardless of Bich's developments, tried to excite Biro to manufacture a low-cost pen. He failed to convince him and settled on his own; improved the ink flow and tested a triple hardness ball. Subsequently, Barcelloni hired Biro to manage the new factory, whose commercial name was Sylvapen. Among other Biro inventions, he designed a perfumer using the same principle as the ballpoint pen. Later, with the same principle, the ball deodorant was created, known in English as roll-on.