Robert Roszak

CS Canadian Downhole Drill Systems: 1 patents #5 of 13Top 40%

📍 Edmonton, CA: #1,480 of 2,912 inventorsTop 55%

Overall (All Time): #3,542,439 of 4,157,543Top 90%

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6378630	Locking swivel device	Leonardo Ritorto	2002-04-30