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1. (WO2009151444) METHOD AND SYSTEM OF TRANSMITTING ELECTROMAGNETIC WAVES FROM A WELLBORE
Available information on National Phase entries(more information)
OfficeEntry DateNational NumberNational Status
Australia24.09.20102008357715Published: 21.10.2010
Canada24.09.20102719651 
United Kingdom30.11.20101020288.5Published: 16.02.2011
Granted: 13.06.2012
United States of America20.09.201012933534Published: 10.02.2011
Granted: 27.05.2014