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PCE
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DIFF Subgroup
B32B 11/08

of metal

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Layered products essentially comprising bituminous or tarry substances > comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance > of metal

CPC:

Layered products comprising bituminous or tarry substances > comprising such substance as the main or only constituent of a layer, next to another layer of a > of metal

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