Rutger Berchem

Gelsenkirchen, DE: #1 of 3 inventorsTop 35%

Overall (1994): #72,365 of 165,921Top 45%

1 Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5353832	Ball valve or cock	—	1994-10-11