JW

John H. Walgren

TW The Charles Machine Works: 1 patents #3 of 16Top 20%
VM Vermeer Manufacturing: 1 patents #7 of 33Top 25%
📍 Lake Havasu City, AZ: #1 of 10 inventorsTop 10%
🗺 Arizona: #256 of 2,283 inventorsTop 15%
Overall (2004): #57,091 of 270,089Top 25%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6832443 Cutting chain Martin Roy Piel 2004-12-21
6684538 Cutting tooth for a trencher chain Larry James Rumer, Jerome Robillard 2004-02-03