DIFF Subgroup
C06B 33/04 the material being an inorganic nitrogen-oxygen salt
Introduced: July 1974
Full Title
Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide > the material being an inorganic nitrogen-oxygen salt
No child classifications to compare. This is a leaf node in both IPC and CPC.