Biography
Kamran Helvadji, Turkish engineer (Diyarbakir 1891- ?)
DESIGNED
Device for automatically calculating trajectory of naval shells
Anti-submarine mines
Balustre compass for manufacturing geometric spirals

Kamran Helvadji, Turkish engineer (Diyarbakir 1891- ?)
Device for automatically calculating trajectory of naval shells
Anti-submarine mines
Balustre compass for manufacturing geometric spirals
Renyuan Qian, Chinese polymer chemist (Changshu, Jiangsu Province 19 September...
Rafael Ramos Galván, Mexican pediatrician (Ciudad de Mexico 09 July...
Guido Beck, Austrian physicist in Latin America (Reichenberg 29 August 1903 –...

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