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PCE
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DIFF Subgroup
B28B 21/88

adjustable, collapsible or expansible (using inflatable cores B28B21/20 )

Introduced: September 1968

Title

Titles differ between systems:

IPC: adjustable, collapsible or expansible

CPC: adjustable, collapsible or expansible (using inflatable cores B28B21/20 )

Full Title

Full titles differ between systems:

IPC:

Methods or machines specially adapted for the production of tubular articles > Cores > adjustable, collapsible or expansible

CPC:

Methods or machines specially adapted for the production of tubular articles > Cores (in general B28B7/00) > adjustable, collapsible or expansible (using inflatable cores B28B21/20 )

No child classifications to compare. This is a leaf node in both IPC and CPC.