DM

David J. Marshall

SP Spotless Plastics Pty.: 2 patents #2 of 3Top 70%
📍 Madison, WI: #10 of 133 inventorsTop 8%
🗺 Wisconsin: #116 of 1,637 inventorsTop 8%
Overall (1989): #29,462 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D303325 Garment hanger 1989-09-12
D301808 Garment hanger 1989-06-27