Max Graetz (1851–1937) was President of the firm Ehrich & Graetz in Berlin, which developed the lamp, and also the primary designer.
Although this lantern took slightly longer to start, compared with some Petromax types made by Ehrich & Graetz which were equipped with rapid, blowlamp type preheaters, it burned for hours on end without needing attention, providing 300 cp (candle power) light output.
Heinrich Graetz | Graetz | Ehrich & Graetz | Paul Graetz | Graetz AG |