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John M. Sparks

📍 Canton, MI: #15 of 39 inventorsTop 40%
🗺 Michigan: #694 of 3,452 inventorsTop 25%
Overall (1989): #92,773 of 140,708Top 70%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4824234 Putting glasses Emily S. Hackler 1989-04-25