DF

David Frees

📍 Calabasas, CA: #930 of 4,119 inventorsTop 25%
🗺 California: #124,610 of 386,348 inventorsTop 35%
Overall (All Time): #1,304,643 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4759842 In-line fuel filtering device Edwin L. Schwartz 1988-07-26
D290348 Timing light Edwin L. Schwartz 1987-06-16
D289400 Electronic fuel pump Edwin L. Schwartz 1987-04-21
4537216 Anti-knock liquid flow control valve Edwin L. Schwartz 1985-08-27