Inventor
KALUSZYNSKI MICHEL
FR4 patents
Patents
4 patentsUS4638984AJan 27, 1987
External apparatus for butt welding two pipes
PETROLES CIE FRANCAISE28 citations88
US4648544AMar 10, 1987
Internal chuck for butt welding two tubes
PETROLES CIE FRANCAISE14 citations69
US4638142AJan 20, 1987
Machine for electron-beam internal butt welding of tubes
PETROLES CIE FRANCAISE4 citations58
US4644132AFeb 17, 1987
Apparatus for horizontally supporting pipes to be butt welded
PETROLES CIE FRANCAISE4 citations56