CPC Subgroup
B29C 53/58 helically
Full Title
Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor (B29C61/10 takes precedence) > Winding and joining, e.g. winding spirally > helically
7 direct subcodes
Child Classifications
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- B29C 53/60 using internal forming surfaces, e.g. mandrels
- B29C 53/72 using external forming surfaces
- B29C 53/74 using a forming surface inthe shape of an endless belt which is recycled after the forming operation
- B29C 53/76 about more than one axis
- B29C 53/78 using profiled sheets or strips