title: Max Graetz
text: # Max Graetz
  
  Max Graetz (1861-1936) was the President/CEO of the Ehrich & Graetz firm in Berlin. He was also the main inventor.
  
  Between 1900-1916 he invented the Petromax lantern.
  
  Ehrich & Graetz was a big metalworks firm until the Second World War.
  
  