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Cutting machine
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Patent number 4,236,627
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Issue date Dec 2, 1980
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Vereinigte Osterreichische Eisen- und Stahlwerke - Alpine Montan Aktiengesell...
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Siegfried Sigott
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Drive systems for mining apparatus
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Patent number 4,078,452
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Issue date Mar 14, 1978
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Gewerkschaft Eisenhutte Westfalia
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Wulff Rosler
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3834763
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Patent number 3,834,763
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Issue date Sep 10, 1974
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E21 - EARTH DRILLING MINING
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3828900
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Patent number 3,828,900
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Issue date Aug 13, 1974
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E21 - EARTH DRILLING MINING
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3774737
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Patent number 3,774,737
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Issue date Nov 27, 1973
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E21 - EARTH DRILLING MINING
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3684067
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Patent number 3,684,067
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Issue date Aug 15, 1972
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E21 - EARTH DRILLING MINING
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3408110
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Patent number 3,408,110
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Issue date Oct 29, 1968
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E21 - EARTH DRILLING MINING
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3162249
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Patent number 3,162,249
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Issue date Dec 22, 1964
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E21 - EARTH DRILLING MINING
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3108789
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Patent number 3,108,789
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Issue date Oct 29, 1963
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E21 - EARTH DRILLING MINING
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3107903
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Patent number 3,107,903
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Issue date Oct 22, 1963
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E21 - EARTH DRILLING MINING
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3033542
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Patent number 3,033,542
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Issue date May 8, 1962
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E21 - EARTH DRILLING MINING
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2530249
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Patent number 2,530,249
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Issue date Nov 14, 1950
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E21 - EARTH DRILLING MINING
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2452760
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Patent number 2,452,760
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Issue date Nov 2, 1948
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E21 - EARTH DRILLING MINING
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2334009
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Patent number 2,334,009
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Issue date Nov 9, 1943
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E21 - EARTH DRILLING MINING
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2262048
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Patent number 2,262,048
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Issue date Nov 11, 1941
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E21 - EARTH DRILLING MINING
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2190925
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Patent number 2,190,925
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Issue date Feb 20, 1940
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E21 - EARTH DRILLING MINING
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2190926
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Patent number 2,190,926
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Issue date Feb 20, 1940
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E21 - EARTH DRILLING MINING
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2136921
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Patent number 2,136,921
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Issue date Nov 15, 1938
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E21 - EARTH DRILLING MINING
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2128064
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Patent number 2,128,064
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Issue date Aug 23, 1938
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E21 - EARTH DRILLING MINING
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2102441
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Patent number 2,102,441
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Issue date Dec 14, 1937
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E21 - EARTH DRILLING MINING
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1914503
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Patent number 1,914,503
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Issue date Jun 20, 1933
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E21 - EARTH DRILLING MINING
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1667167
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Patent number 1,667,167
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Issue date Apr 24, 1928
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E21 - EARTH DRILLING MINING
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1639255
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Patent number 1,639,255
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Issue date Aug 16, 1927
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E21 - EARTH DRILLING MINING