Wilhelm Haller, Date of Birth, Date of Death

Wilhelm Haller

German businessman

Date of Birth: 25-Jul-1935

Date of Death: 02-Aug-2004

Profession: writer

Nationality: Germany

Zodiac Sign: Leo

Wilhelm "Willi" Haller (1935–2004) was a Swabian businessman and social entrepreneur and is considered the father of Flexitime of Interflex Datensysteme.