DIFF Main Group
B21D 15/00 Corrugating tubes (wrinkle-bending using mandrels or the like B21D9/14)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Corrugating tubes
CPC: Corrugating tubes (wrinkle-bending using mandrels or the like B21D9/14)
Full Title
Full titles differ between systems:
IPC:
Corrugating tubes
CPC:
Corrugating tubes (wrinkle-bending using mandrels or the like B21D9/14)
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
Child Classifications
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