anchored at one or both ends to the mine working face

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Patents Grantslast 30 patents

Information Patent Grant
Haulage chain for a mineral winning installation
- Patent number 5,244,256
- Issue date Sep 14, 1993
- Meco A.F.C. Limited
- Peter Howard
- E21 - EARTH DRILLING MINING
Information Patent Grant
Arrangement for guiding a cutting machine or similar mining machine...
- Patent number 5,161,858
- Issue date Nov 10, 1992
- Halbach and Braun Industrieanlagen
- Gert Braun
- E21 - EARTH DRILLING MINING
Information Patent Grant
Guide for a hewing machine mounted on a conveyor
- Patent number 5,131,723
- Issue date Jul 21, 1992
- Kloeckner-Becorit GmbH
- Franz Roling
- E21 - EARTH DRILLING MINING
Information Patent Grant
Contour miner
- Patent number 4,260,195
- Issue date Apr 7, 1981
- Daniel; John M.
- Gwyn G. Hart
- E21 - EARTH DRILLING MINING
Information Patent Grant
1328755
- Patent number 1,328,755
- Issue date Jan 20, 1920
- E21 - EARTH DRILLING MINING