RF

Roderick J. Frederick

📍 Seattle, WA: #8,251 of 21,776 inventorsTop 40%
🗺 Washington: #27,877 of 76,902 inventorsTop 40%
Overall (All Time): #1,682,791 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4373611 Conveyor to interfit with a loaded shopping cart and to move portions of the load, on demand of a checker, to the front of the cart, for removal, price scanning, and bagging, by the checker at a checkout stand 1983-02-15
D264285 Market check out stand 1982-05-11
D258783 Market check out stand 1981-04-07