SH

Stewart G. Helfrich

TV The Virkler: 1 patents #1 of 4Top 25%
📍 Hamburg, PA: #1 of 5 inventorsTop 20%
🗺 Pennsylvania: #989 of 4,367 inventorsTop 25%
Overall (1997): #75,405 of 185,788Top 45%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5667533 Heather dyed fabric and method of producing same Peter Hauser 1997-09-16