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Haulage drive
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Patent number 4,501,447
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Issue date Feb 26, 1985
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Anderson Strathclyde PLC
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James P. Tatton
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Hauling and cutting plant
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Patent number 4,346,938
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Issue date Aug 31, 1982
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Halbach and Braun
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Ernst Braun
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E21 - EARTH DRILLING MINING
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Mineral mining equipment
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Patent number 4,235,475
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Issue date Nov 25, 1980
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Coal Industry (Patents) Limited
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Harry Monks
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E21 - EARTH DRILLING MINING
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Mineral mining equipment
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Patent number 3,937,151
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Issue date Feb 10, 1976
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Coal Industry (Patents) Limited
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Harry Monks
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E21 - EARTH DRILLING MINING
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3892184
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Patent number 3,892,184
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Issue date Jul 1, 1975
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E21 - EARTH DRILLING MINING
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3753596
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Patent number 3,753,596
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Issue date Aug 21, 1973
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E21 - EARTH DRILLING MINING
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3594043
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Patent number 3,594,043
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Issue date Jul 20, 1971
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E21 - EARTH DRILLING MINING
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2750153
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Patent number 2,750,153
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Issue date Jun 12, 1956
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E21 - EARTH DRILLING MINING
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2697950
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Patent number 2,697,950
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Issue date Dec 28, 1954
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E21 - EARTH DRILLING MINING
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2638332
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Patent number 2,638,332
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Issue date May 12, 1953
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E21 - EARTH DRILLING MINING
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2552705
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Patent number 2,552,705
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Issue date May 15, 1951
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E21 - EARTH DRILLING MINING
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2543634
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Patent number 2,543,634
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Issue date Feb 27, 1951
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E21 - EARTH DRILLING MINING
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2336992
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Patent number 2,336,992
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Issue date Dec 14, 1943
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E21 - EARTH DRILLING MINING
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2335318
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Patent number 2,335,318
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Issue date Nov 30, 1943
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E21 - EARTH DRILLING MINING
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2297894
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Patent number 2,297,894
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Issue date Oct 6, 1942
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E21 - EARTH DRILLING MINING
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2225666
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Patent number 2,225,666
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Issue date Dec 24, 1940
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E21 - EARTH DRILLING MINING
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2221454
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Patent number 2,221,454
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Issue date Nov 12, 1940
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E21 - EARTH DRILLING MINING