DIFF Subgroup
B21D 3/08 which move in an orbit without rotating round the work
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts > by rollers > which move in an orbit without rotating round the work
CPC:
Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (straightening of well casings in situ E21B; ) > by rollers > which move in an orbit without rotating round the work
No child classifications to compare. This is a leaf node in both IPC and CPC.