Block Chain and Digital Currency Investors Directory II 4300 Investors and Investment Companies listed. International Edition 2017 No. 34, 2017- established since 1992 Special Edition: Block chain and Digital Currency Investors Investors and Investment Companies Send proof of purchase INVOICE . Kindle free or prime eBooks does not qualify and get the Index data in Excel for only EUR39, 90 on CD. You can also contact blockchain.koeln for any assistance advice or consulting.weiterlesen