A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
83/15
A61C 3/02 (2006.01)
Patent
CA 1284733
ABSTRACT OF THE DISCLOSURE A dental bur whose abrading or cutting surfaces are covered by an adherent layer of a suitable nitride or carbide deposited thereon. The layer is deposited on edge surfaces and adjacent surfaces by vacuum deposition, arc deposition, or cathode sputtering to produce a layer of thickness controlled to be insufficiently thick to form an unsuitably dull edge.
534754
Smart & Biggar
Snaper Alvin A.
LandOfFree
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