https://archive.org/search?query=ElectroGravity
Unification of Gravity and Electromagnetism I: Mach’s Principle and Cosmology
by Partha Ghose
https://archive.org/details/arxiv-1408.2403
ELECTROGRAVITY PATENTS
https://archive.org/details/ELECTROGRAVITYPATENTS/AdvancedStellarPropulsionSystems/page/n23/mode/2up