Joseph P. Gierlach

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Franklin, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Cutter drum extension mechanism
- Patent number 8,231,179
- Issue date Jul 31, 2012
- Joy MM Delaware, Inc.
- John E. Willison
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
CUTTER DRUM EXTENSION MECHANISM
- Publication number 20100276986
- Publication date Nov 4, 2010
- JOY MM DELAWARE
- John E. Willison
- E21 - EARTH DRILLING MINING