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.