Vassil Kalkov
The Things Network User
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Gateway at Stochna Gara
by Vassil Kalkov
Nov 23, 2016 - 906 views
Meetup #1
by Vassil Kalkov
Nov 03, 2016 - 837 views
Initial meeting of TTN Plovdiv
by Vassil Kalkov
Oct 11, 2016 - 943 views
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