Ognjeslav Stepanović Kostović
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Ognjeslav Stepanović Kostović (Serbian Cyrillic: Огњеслав Степановић Костовић) (1851 – 16 December 1916) was a Serbian inventor. He is credited with creating "arbonite" (i.e. plywood), the first "plastic" materials (e.g. gutta percha) pre-date 1906 plastic in the world.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/9/92/Ognjeslav_Kostovic.jpg)
In this name that follows Eastern Slavic naming customs, the patronymic is Stepanović and the family name is Kostović.