RR

Romuald Raczkowski

📍 Chicago, IL: #20 of 382 inventorsTop 6%
🗺 Illinois: #133 of 3,813 inventorsTop 4%
Overall (1989): #7,501 of 140,708Top 6%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4843758 Regulated automatic plant waterer 1989-07-04
4807361 Cutting blade lubrication 1989-02-28
4805804 Potted plant feeder 1989-02-21