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PCE
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DIFF Subgroup
F28F 19/04

of rubber; of plastics material; of varnish

Introduced: September 1968

Full Title

Preventing the formation of deposits or corrosion, e.g. by using filters > by using coatings, e.g. vitreous or enamel coatings > of rubber; of plastics material; of varnish

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