With Hydrocarbon Solvents (252/167) Patents (Class 510/FOR219)

Foreign Patent Art Collections

Wax or cellulose-ester and abradant, inorganic solid, or other filling containing (252/168) (Class 510/FOR220)
Wax or cellulose-ester containing (252/169) (Class 510/FOR221)

There are no patents to show for this class.