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Slavoljub PenkalaSlavoljub Eduard Penkala (April 20, 1871 - February 5, 1922) was an engineer and inventor from Croatia. Penkala was born in Liptovsk Mikulš (in what is now Slovakia), to a Polish/Dutch family. He finished schooling in Vienna and Dresden. He then immigrated with his family to Zagreb and subsequently added "Slavoljub" to his name, also becoming a naturalized Croat. He became renowned for his inventions of the first mechanical pencil (1906) (then called "automatic pencil") and the first solid-ink fountain pen (1907). Together with an enterpreneur by the name of Edmund Moster, he started a factory of pens and pencils "Penkala-Moster" that was one of the bigger in the world at the time, and still exists today (named "TOZ-Penkala", where TOZ stood for "Tvornica olovaka Zagreb", meaning "Zagreb pencil factory"). He also constructed the first Croatian two-seat aeroplane in 1909. He constructed and invented many other products and devices, and has under his name a total of 80 patents. Among his patented inventions are: He also founded another factory named "Elevator" that produced various chemistry-related items, such as "Radium Vinovica", a patent-medicine-like product sold as curing various forms of rheumatism. Penkala died rather abruptly in Zagreb at the age of 51, after picking up pneumonia on a business trip. External link Penkala, Slavoljub Penkala, Slavoljub
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