CY

Clarence Yeo

HI Hallmark Cards, Incorporated: 2 patents #69 of 288Top 25%
📍 Raytown, MO: #33 of 89 inventorsTop 40%
🗺 Missouri: #8,863 of 23,789 inventorsTop 40%
Overall (All Time): #2,341,280 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4659446 Apparatus for electroplating printing cylinders Donald A. Shafer, Ronald Walker 1987-04-21
4647354 Protectors for printing cylinder shafts or the like Ronald Walker, Donald A. Shafer 1987-03-03