IP Library › Granted Patent US 4,575,156
Granted Patent Utility
US 4,575,156 · App. 06/589,153

Mining block and bit

Inventors: David L. Hunter, Sr., Leroy E. Den Besten
Patented Case View Patent ↗
Granted: Mar 11, 1986 Filed: Mar 13, 1984
Inventors
David L. Hunter, Sr.
Leroy E. Den Besten
Assignee (at issue)
Fansteel Inc.

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Quick Facts
Patent No.
US 4,575,156
App. No.
06/589,153
Filed
1984-03-13
Granted
1986-03-11
Kind
A