RB

Robert Bolthouse

📍 Traverse City, MI: #3 of 11 inventorsTop 30%
🗺 Michigan: #694 of 3,452 inventorsTop 25%
Overall (1989): #64,502 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4807859 Die spring retainer — 1989-02-28