Hovhannes (Ivan) Abgari Adamian (5 February 1879 12 September 1932) was an Armenian engineer, an author of more than 20 …
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www.youtube.com/@YerevanVlog
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Hovhannes (Ivan) Abgari Adamian (5 February 1879 12 September 1932) was an Armenian engineer, an author of more than 20 …
source
