LT

L. John Twiford

📍 Phoenix, AZ: #3,656 of 6,660 inventorsTop 55%
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1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4238986 Method for altering tonal characteristics of a stringed musical instrument — 1980-12-16