Emmett W. Chappelle · Orville

Main Entry: Emmett W. Chappelle
Patent Title: Automatic Instrument for Chemical Processing to Detect Microorganisms in Biological Samples My Measuring Light Reactions
Family Name: Chappelle
Given Name: Emmett
Middle Name: W.
Patent Date: September 4, 1973
Patent Number: 3,756,920
Location: MD

Item sets: INDEX OF BLACK INVENTORS BY STATE OR COUNTRY OF RESIDENCE 1834-2008