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PCE
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DIFF Subgroup
B31B 50/64

by applying heat or pressure, e.g. by welding (to unite areas where adhesives are applied B31B50/62)

Introduced: January 2017

Title

Titles differ between systems:

IPC: by applying heat or pressure, e.g. by welding

CPC: by applying heat or pressure, e.g. by welding (to unite areas where adhesives are applied B31B50/62)

Full Title

Full titles differ between systems:

IPC:

Making rigid or semi-rigid containers, e.g. boxes or cartons > Uniting opposed surfaces or edges; Taping > by applying heat or pressure, e.g. by welding

CPC:

Making rigid or semi-rigid containers, e.g. boxes or cartons > Uniting opposed surfaces or edges; Taping > by applying heat or pressure, e.g. by welding (to unite areas where adhesives are applied B31B50/62)

CPC subdivides this area 6x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

IPC defines codes here since 2017.

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