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John R. Sigman

📍 Phoenix, AZ: #3,656 of 6,660 inventorsTop 55%
🗺 Arizona: #18,403 of 32,909 inventorsTop 60%
Overall (All Time): #3,535,197 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6343411 Apparatus for removing and installing plumbing flanges — 2002-02-05