RF

Robert H. File

📍 Scottsdale, AZ: #1,079 of 3,386 inventorsTop 35%
🗺 Arizona: #10,057 of 32,909 inventorsTop 35%
Overall (All Time): #1,678,071 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4596357 Mailbox signaling device — 1986-06-24
4385409 Shower curtain bender Karen S. File 1983-05-31
4205778 Mail delivery signal with flat signal plates — 1980-06-03