SD

Stephen A. Dier

TL Trw Limited: 2 patents #4 of 97Top 5%
📍 Fraser, MI: #2 of 6 inventorsTop 35%
🗺 Michigan: #263 of 3,452 inventorsTop 8%
Overall (1989): #15,554 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4862571 Method of making a valve sleeve Thomas Prinz 1989-09-05
4799303 Method of making a valve sleeve Thomas Prinz 1989-01-24