WJ

William H. Sprague, Jr.

📍 Mead, WA: #15 of 37 inventorsTop 45%
🗺 Washington: #35,300 of 76,902 inventorsTop 50%
Overall (All Time): #2,153,146 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7161077 Gradually progressive bore BB-flat, CC, E-flat, F, or B-flat valved musical wind instrument and valved B-flat/F inverted double musical wind instrument Robert C. Fry, Craig L. Fuller 2007-01-09
4551612 Wall-contained electric water heating tank 1985-11-05