51808 ⎘
General aspects of processes or apparatus for joining preformed parts; General aspects of machine operations or constructions and parts thereof; Specific machine types or machines suitable for specific applications; Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling being self-propelling the traction being made on the seam
Roofing thermal welder extension marking tool
#2Drive system for automatic welding machine
#3Method and apparatus for forming leak detectable geomembrane liners
#4Apparatus for bonding overlapping material layers
#5Welding apparatus
#6Automatic welding machine
#7Automatic welding machine
#8Method and apparatus for forming leak detectable geomembrane liners
#9Methods and apparatus for fabricating structures