"E75" often refers to a conceptual [Heavy Tank](/wiki/heavy_tank) series, a proposed [War Design](/wiki/war_design) from the mid-20th century. Though largely remaining on paper, its legacy reflects an era's ambitious pursuit of dominant military technology and standardized production.
See also
[Tank](/wiki/tank)[Prototype](/wiki/prototype)[Armored Warfare](/wiki/armored_warfare)[Military History](/wiki/military_history)