John W. Willard, Sr. · Orville

Main Entry: John W. Willard, Sr.
Patent Title: Method of Removing Solid Paraffin-Containing Deposits from Oil Wells Surfaces
Family Name: Willard
Given Name: John
Middle Name: W.
Suffix: Sr.
Patent Date: September 19, 1967
Patent Number: 3,342,265
Location: SD

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