James Schulz

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Sullivan, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Hole opener assembly and a cone arm forming a part thereof
- Patent number 7,845,437
- Issue date Dec 7, 2010
- Century Products, Inc.
- Todd Bielawa
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
HOLE OPENER ASSEMBLY AND A CONE ARM FORMING A PART THEREOF
- Publication number 20100206638
- Publication date Aug 19, 2010
- Todd Bielawa
- E21 - EARTH DRILLING MINING