David J. B. Perkins

AL Apsley Metals Limited: 2 patents #1 of 3Top 35%

📍 Cedar Rapids, IA: #3 of 62 inventorsTop 5%

🗺 Iowa: #26 of 549 inventorsTop 5%

Overall (1989): #29,391 of 140,708Top 25%

Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4871409	Apparatus for laying a continuous strip of elastomeric material onto a surface	—	1989-10-03
4869773	Cord guide device	—	1989-09-26