Fred E. Sjogren

UN Unknown: 1 patents #112 of 1,079Top 15%

📍 Coos Bay, OR: #1 of 4 inventorsTop 25%

🗺 Oregon: #40 of 384 inventorsTop 15%

Overall (1982): #64,778 of 81,411Top 80%

Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4361198	Scale pad and valve structure	—	1982-11-30