Lajos Kovacs

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Mansfield, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for fabricating a truss member for a mine roof support
- Patent number 5,450,663
- Issue date Sep 19, 1995
- Jennmar Corporation
- Frank Calandra
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for supporting a mine roof
- Patent number 5,302,056
- Issue date Apr 12, 1994
- Jennmar Corporation
- Frank Calandra
- E21 - EARTH DRILLING MINING