William Hearns · Orville

Main Entry: William Hearns
Patent Title: Device for Removing and Inserting Taps and Plugs in Water Mains
Family Name: Hearns
Given Name: William
Patent Date: October 8, 1912
Patent Number: 1,040,538
Location: DC

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