38342 ⎘
Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes; Making tubes of special shape; Making tube fittings Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
Sub-classes:UMBILICAL
#2PRODUCTION METHOD AND PRODUCTION DEVICE FOR TUBE WITH SPIRALLY GROOVED INNER SURFACE
#3Elongate member assembly
#4Heat transfer tube, heat exchanger, and method for manufacturing heat transfer tube
#5Production method and production device for tube with spirally grooved inner surface
#6Method for producing a rifled tube
#7Production method and production device for tube with spirally grooved inner surface
#8FRICTION-STIR EXTRUDERS AND FRICTION-STIR EXTRUSION PROCESSES
#9Process for manufacturing a bellows and/or bellows
#10Flexible tube, manufacturing method and apparatus
#11Method of forming protrusions on the inner surface of a tube
#12Microgrooves as Wick Structures in Heat Pipes and Method for Fabricating the Same
#13Metal slicing machine
#14Method for making enhanced heat transfer surfaces
#15Method of forming protrusions on the inner surface of a tube
#16Tool for making enhanced heat transfer surfaces
#17Heat transfer tube including enhanced heat transfer surfaces