
James Mills, Chuck Paul(Pauls percision Machine shop, machinist), and Jim Neal.1990

OSU engineering team 1985 Bertrem Valve became their senior project for them to test the Bertrem Valve. 1985. Working out of the Bertrem home.

Sue Bertrem in office on 21st. 1995.

Frank Kessler AUMA, sales mtg in Arizona. Picked up Auma for the Mohawk water treatment plant in Tulsa, OK in 1990’s-97 then again in 2008-present.

first couplings sold to the city of Tulsa. egg shaped pipe. Straub was the only coupling that fit the pipe correctly.