Haans K. Petruschke

📍 Kirtland, OH: #2 of 8 inventorsTop 25%

🗺 Ohio: #715 of 3,574 inventorsTop 25%

Overall (1989): #107,942 of 140,708Top 80%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4838901	Lightweight filter	Robert N. Schmidt	1989-06-13