John L. Clem

SD Sprague Devices: 1 patents #6 of 11Top 55%

📍 Michigan City, IN: #83 of 158 inventorsTop 55%

🗺 Indiana: #19,404 of 33,936 inventorsTop 60%

Overall (All Time): #4,081,836 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4245369	Straight sweep windshield wiper	—	1981-01-20