E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
148/25
E21B 10/22 (2006.01) C23C 8/00 (2006.01)
Patent
CA 1066999
Abstract of the Disclosure Disclosed herein is an improved method of finish- ing a steel article having a carburized and boronized case. The article is carburized to a selected depth then finished to a smoothness which is smoother than the desired final finish. The article is then boronized, hardened and tempered. Further finishing is unnecessary. -2-
248997
Hughes Tool Company
Na
LandOfFree
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