Before revision: Johann Grander (24 April 1930 – 24 September 2012) was the Austrian inventor of a water revitalization technology, which has scientifically been proven as ineffective , although a significant number of customer testified positive effects .
After revision: Johann Grander (24 April 1930 – 24 September 2012) was the Austrian inventor of a water revitalization technology, which has scientifically been proven as ineffective .