TY - JOUR AB - <p>An obituary for inventor Charles H. Parr.</p> AU - DA - 1941/7// DO - 10.17077/0003-4827.6903 IS - 1 VL - 23 PB - State Historical Society of Iowa PY - 1941 TI - Charles H. Parr T2 - The Annals of Iowa UR - https://pubs.lib.uiowa.edu/annals-of-iowa/article/id/13603/ ER -