DM

Donald R. Morrison

📍 Charlotte, NC: #3 of 69 inventorsTop 5%
🗺 North Carolina: #13 of 673 inventorsTop 2%
Overall (1982): #5,291 of 81,411Top 7%
3
Patents 1982

Issued Patents 1982

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4349295 Structural ridge member for vibrating concrete screeds 1982-09-14
4335976 Winch apparatus for vibrating concrete screed 1982-06-22
4320986 Motor powered rotary trowel 1982-03-23