Marie G. J. Legrand

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3540 Zolder, BE

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Patents Grantslast 30 patents

Information Patent Grant
Machine for the cutting of rocks in underground works
- Patent number 4,290,652
- Issue date Sep 22, 1981
- Marie G. J. Legrand
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tunneling machine with plural adjustable arms carrying single cutter
- Patent number 4,169,629
- Issue date Oct 2, 1979
- Marie G. J. Legrand
- E21 - EARTH DRILLING MINING