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John R. Sigman

📍 Phoenix, AZ: #106 of 414 inventorsTop 30%
🗺 Arizona: #614 of 2,228 inventorsTop 30%
Overall (2002): #184,544 of 266,432Top 70%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

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