Robert Dumortier

📍 Le Mans, FR: #49 of 340 inventorsTop 15%

Overall (All Time): #1,205,041 of 4,157,543Top 30%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
9381924	Double-decker railway rolling stock vehicle with paths to the upper deck	—	2016-07-05
4627249	Latch for utility access door	—	1986-12-09
4508469	Manhole with articulated cover members	—	1985-04-02
4364689	Manhole cover assembly	—	1982-12-21