Question

In the following scientists, who was the one to introduce first patent on ECM?

(a) Balamuth

(b) Steve O Flawer

(c) Gusseff

(d) McGeough

The question was posed to me during an interview.

Question is taken from Electro Chemical Machining-Introduction and Principle of electrolysis in portion Electrochemical Processes of Advanced Machining

Answer 1

Correct option is (c) Gusseff

For explanation I would say: Gusseff was the one, who introduced the first patent on ECM in 1929.