RecommendClaim ownershipReport abuse Address and contact Address and contact Address Hansastraße 18 46049 Oberhausen Germany Address location Navigation Past dates Past dates 04 —05 November 2017 All day Conference OpenRheinRuhr 05 —06 November 2016 All day Conference OpenRheinRuhr 08 —09 November 2013 All day Conference OpenRheinRuhr