At which major historical exposition was Cochrane’s practical dishwasher design showcased?
Answer
The 1893 World's Columbian Exposition in Chicago
Josephine Cochrane's practical design was prominently displayed and attracted commercial interest at the 1893 World's Columbian Exposition held in Chicago.

Related Questions
What was Josephine Cochrane's immediate motivation for inventing the dishwasher?How did Josephine Cochrane’s initial dishwasher design clean the dishes?What did the dishwasher ultimately represent in terms of the long-term impact on household labor?Approximately how much time might a substantial pre-modern household dedicate daily to washing, drying, and putting away dishes?What sanitation advantage did the machine offer over diligent handwashing?Where did the dishwasher first find widespread acceptance before filtering down to the consumer market?At which major historical exposition was Cochrane’s practical dishwasher design showcased?The business Josephine Cochrane founded to manufacture dishwashers eventually evolved into a key component of which modern brand?What powered the water pressure in the early iteration of Cochrane's dishwasher?What was the primary reason for the slow initial adoption curve of the dishwasher technology?