Gelman Instrument Company, interior, September 1963 Year 1963 Month September Rights Held By Donated by the Ann Arbor News. © The Ann Arbor News. Copyright Copyright Protected Photo Subjects Pall Gelman Dioxane Groundwater Contamination Cleanup History Gelman Sciences Inc. Gelman Instrument Co. Ann Arbor News Old News Eck Stanger 600 S Wagner Rd