DS

Duwayne Springer

Overall (2018): #430,969 of 503,207Top 90%
1
Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9951583 Reciprocating wellbore obstruction-clearing tool and bailer Randy GOSSELIN, Trevor James MONTGOMERY 2018-04-24