Harold M. Bowman

UN Unknown: 3 patents #7,366 of 83,584Top 9%

📍 Fairview Park, OH: #2 of 133 inventorsTop 2%

🗺 Ohio: #1,880 of 73,341 inventorsTop 3%

Overall (All Time): #133,013 of 4,157,543Top 4%

Patents All Time

Issued Patents All Time

Showing 26–29 of 29 patents

Patent #	Title	Co-Inventors	Date
4281944	Manhole cover support	—	1981-08-04
4269385	Sectional ingot mold	—	1981-05-26
4236358	Adjustable manhole cover support structure	—	1980-12-02
4203686	Manhole construction	—	1980-05-20