Ammonia, Amine, Or Nitrogen Base Compound Containing (except Proteins) (252/117) Patents (Class 510/FOR136)

Foreign Patent Art Collections

Physical non-water solvent containing (252/118) (Class 510/FOR137)
Water-insoluble abradant, wax, or filler containing (252/120) (Class 510/FOR139)

There are no patents to show for this class.