what is the {point in time} for {Harold Eugene Edgerton} has {award received} as {SPIE Gold Medal} ?
In what year was Harold Eugen Edgerton awarded the SPIE Gold Medal?
When did Harold Eugene Edgerton receive the SPIE Gold Medal?
SELECT ?p WHERE { ?q property:point_in_time ?p . ?q property:award_received resource:SPIE_Gold_Medal . resource:Harold_Eugene_Edgerton property:award_received ?q }
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