John L. Frehn

📍 Lancaster, CA: #132 of 336 inventorsTop 40%

🗺 California: #247,236 of 386,348 inventorsTop 65%

Overall (All Time): #4,022,844 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4546217	Telephone sanitary cover	—	1985-10-08