IP Library › Granted Patent US 6,802,914
Granted Patent Utility
US 6,802,914 · App. 10/607,805

Stress relieved grinding ball having hard outer shell

Inventor: Christian Jäger
Patented Case View Patent ↗
Granted: Oct 12, 2004 Filed: Jun 27, 2003
Inventor
Christian Jäger
Assignee (at issue)
Stelco Inc.

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Quick Facts
Patent No.
US 6,802,914
App. No.
10/607,805
Filed
2003-06-27
Granted
2004-10-12
Kind
B2