Inventor · disambiguated record
Erik T. Hartzell
Also filed as: HARTZELL ERIK T
3 granted patents·366 citations·filing 1985–1987
79Inventor score
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3 records- 0197US4743515ACemented carbide body used preferably for rock drilling and mineral cuttingSANTRADE LTD·Filed 1985·Granted May 10, 1988·242 cites·18 claims
- 0293US4820482ACemented carbide body with a binder phase gradient and method of making the sameSANTRADE LTD·Filed 1987·Granted Apr 11, 1989·94 cites·11 claims
- 0361US4764255ACemented carbide toolSANDVIK AB·Filed 1987·Granted Aug 16, 1988·30 cites·4 claims
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