Hubert A. Perraudin

EM Equipements Automobiles Marchal: 2 patents #5 of 32Top 20%

📍 Champigny-sur-Marne, FR: #30 of 94 inventorsTop 35%

Overall (All Time): #2,344,040 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4706483	Method and device for finishing by burnishing of a helical thread cut on a cylindrical component	—	1987-11-17
4683785	Method of cutting a worm screw and a worm screw obtained by the said method	—	1987-08-04