EGF Device Questions › Category: Devices and Techniques › EGF Device 0 Vote Up Vote Down Chris asked 9 months ago What to the letters EGF stand for, and how does the device work? 1 1 Answers 0 Vote Up Vote Down Fro Staff answered 9 months ago I am not sure what EGF acronym you are referencing. Can you give the whole word? Or send reference to where you saw it or read it? 1