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Andy MacCallum

📍 Hearst, CA: #50 of 97 inventorsTop 55%
Overall (All Time): #3,257,432 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7986245 Measurement while drilling mud pulser control valve mechanism Daniel Seutter, Robert Diederichs, Jerry Yee 2011-07-26