underwentUpgrade

URI: https://gptkb.org/prop/underwentUpgrade
5 triples
GPTKB property
Random triples
Subject Object
gptkb:Njord_field 2016-2022
gptkb:Eastern_Treatment_Plant 2012
gptkb:Alvin_submersible 2011-2014
gptkb:Rawdat_Al_Khail_Street 2017
gptkb:Crossness_Sewage_Treatment_Works 2010s