… wadding, felt, nonwovens, cellular plastics or cellular rubber, impregnated, coated or covered with such …
Explanatory notes
… wadding, felt, nonwovens, cellular plastics or cellular rubber, impregnated, coated or covered with such … preparations may have a basis of wax, abrasives or other substances. Examples of such preparations are : (1) Waxes … these powders with, for example, a solution of waxes in a lubricating mineral oil. These preparations, which are often …