1
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Material Type: Patente
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Mining apparatus and method. [movable conveyor attached to chock support]
Campbell, J.A.L. ; Moynihan, D.J.
United States 1978
Sem texto completo
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2
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Material Type: Patente
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Mining machinery
Jolly, H.
United States 1984
Sem texto completo
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3
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Material Type: Patente
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Method of, and apparatus for, winning mineral material
Langenberg, H. ; Grisebach, H.T. ; Weinhold, H.
United States 1983
Sem texto completo
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4
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Material Type: Patente
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Mobile mine roof support system
Nelson, R.C.
United States 1981
Sem texto completo
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5
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Material Type: Patente
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Mining machine
Mendola, C.F.
United States 1981
Sem texto completo
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6
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Material Type: Patente
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Apparatus for use in under-ground long wall mine workings
Goff, J.R. ; Spence, A.M.
United States 1981
Sem texto completo
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7
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Material Type: Patente
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Guide-rail assembly for longwall mining apparatus
Braun, G.
United States 1981
Sem texto completo
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8
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Material Type: Patente
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High pressure water jet mining machine
Barker, C.R.
United States 1981
Sem texto completo
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9
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Material Type: Patente
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Coal combine
Krutki, M. ; Olender, K. ; Sedlaczek, J.
United States 1981
Sem texto completo
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10
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Material Type: Patente
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Mineral mining equipment
Monks, H.
United States 1980
Sem texto completo
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