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Doug Brunskill

NM Ncs Multistage: 1 patents #5 of 9Top 60%
📍 Calgary, CA: #169 of 618 inventorsTop 30%
Overall (2018): #434,279 of 503,207Top 90%
1
Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9970262 Downhole valve apparatus Michael WERRIES, John Ravensbergen, Don Getzlaf 2018-05-15