JK

Jan A. Krejcar

📍 Springfield, PA: #99 of 190 inventorsTop 55%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,056,083 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4398716 Handler for tennis and similar play balls John Argibay, Jr. 1983-08-16