John J Hoefner

John J. Hoefner is a mechanical consultant specializing in reciprocating and centrifugal compressors, engines, turbines, and pumps. He is the former chief engineer of Worthington Service Corporation.

John J. Hoefner is a mechanical consultant specializing in reciprocating and centrifugal compressors, engines, turbines, and pumps. He is the former chief engineer of Worthington Service Corporation. See less