From Wikipedia, the free encyclopedia
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.
- Ernst Quadt: Deutsche Industriepioniere. Berlin 1940.