E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 10/46 (2006.01)
Patent
CA 2514637
Cutting elements and bits incorporating such cutting elements are provided. The cutting elements include a substrate having an interface surface over which is formed an ultra hard material layer. A plurality of lands are formed on the interface surface. A plurality of depressions are formed on the lands.
Shen Yuelin
Svendsen Zan
Zhang Youhe
Fetherstonhaugh & Co.
Smith International Inc.
LandOfFree
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