Harold M. Bowman

📍 Fairview Park, OH: #1 of 9 inventorsTop 15%

🗺 Ohio: #54 of 3,574 inventorsTop 2%

Overall (1989): #5,170 of 140,708Top 4%

Patents 1989

Issued Patents 1989

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
4872780	Manhole cover support with box flanging	—	1989-10-10
4867600	Polygonal manhole cover support	—	1989-09-19
4867601	Sturdy adjustable manhole cover support	—	1989-09-19
4834574	Utility cover extension	—	1989-05-30