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An Ingersoll EDM Power Supply
Bob Bertolasi in a laboratory working on Ingersoll Milling Machine Company's first proprietary EDM (electrical discharge machining) supply.
Ingersoll Milling Machine Company Distributor Training
Distributors being trained on a new line of Ingersoll Milling Machine Company EDM (electrical discharge machining) power supplies. Leading the training at left is Bob Bertolasi.
An Ingersoll Power Supply for IBM
(From right to left) Bob Bertolasi, Ron Weaver, and Doug Hood introduce the Ingersoll Milling Machine Company 20micro, .0001tol 48 lead power supply that was designed for IBM.