Home › Vallourec › Pierre R. Fillet

Pierre R. Fillet

VAVallourec: 1 patents #15 of 33Top 50%

Overall (All Time): #3,981,532 of 4,157,543Top 100%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4691791	Knurled drill stem	—	1987-09-08