Klemens Stefan Sielecki
Polish noble
Died when: 76 years 219 days (919 months)Star Sign: Sagittarius
![Klemens Stefan Sielecki](http://commons.wikimedia.org/wiki/Special:FilePath/Klemens_Stefan_Sielecki_1940.jpg?width=300)
Klemens Stefan Sielecki (December 8, 1903 in Stanislawów, Austria-Hungary – July 14, 1980 in Kamien Pomorski, Poland) was a Polish engineer and technical director of the first Polish Locomotive Factory Fablok in Chrzanów in the post-war years until 1964.
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