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John W. Seppamaki

📍 Grandville, MI: #58 of 219 inventorsTop 30%
🗺 Michigan: #27,158 of 86,293 inventorsTop 35%
Overall (All Time): #1,672,930 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
RE32671 Flue control device — 1988-05-24
4735130 Fresh air make-up apparatus — 1988-04-05
4499891 Flue control device — 1985-02-19