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Ceramic welding
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Patent number 5,380,563
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Issue date Jan 10, 1995
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Coal Industry (Patents) Limited
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Leslie E. J. Tueker
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Strata movement indicator
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Patent number 5,345,685
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Issue date Sep 13, 1994
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Coal Industry (Patents) Limited
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Alan S. Bloor
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G01 - MEASURING TESTING
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Ceramic candle filter arrangements
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Patent number 5,296,010
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Issue date Mar 22, 1994
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Coal Industry (Patents) Limited
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Richard K. Clark
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Protective helmets
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Patent number 5,283,914
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Issue date Feb 8, 1994
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Coal Industry (Patents) Limited
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Granville C. James
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A42 - HEADWEAR
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Coal extract hydrocracking catalyst
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Patent number 5,236,881
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Issue date Aug 17, 1993
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Coal Industry (Patents) Limited
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Michael A. Jones
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Coal extraction process
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Patent number 5,110,451
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Issue date May 5, 1992
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Coal Industry (Patents) Limited
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Michael A. Jones
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Test for catalyst activity
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Patent number 5,059,539
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Issue date Oct 22, 1991
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Coal Industry (Patents) Limited
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Geoffrey M. Kimber
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C07 - ORGANIC CHEMISTRY
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Coal extraction
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Patent number 4,997,548
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Issue date Mar 5, 1991
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Coal Industry (Patents) Limited
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Terry D. Rantell
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Device for extracting and burning methane
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Patent number 4,907,964
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Issue date Mar 13, 1990
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Coal Industry (Patents) Limited
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Stephen Howarth
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Conveyor belt clamp
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Patent number 4,887,336
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Issue date Dec 19, 1989
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Coal Industry (Patents) Limited
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Robert J. Cann
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Briquette treatment process
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Patent number 4,877,418
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Issue date Oct 31, 1989
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Coal Industry (Patents) Limited
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Joseph Goleczka
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Filter press cloth hanger
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Patent number 4,874,512
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Issue date Oct 17, 1989
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Coal Industry (Patents) Limited
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Douglas W. Brown
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Helmet
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Patent number 4,852,562
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Issue date Aug 1, 1989
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Coal Industry (Patents) Limited
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Robin M. Howie
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A42 - HEADWEAR
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Moisture meter
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Patent number 4,788,853
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Issue date Dec 6, 1988
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Coal Industry (Patents) Limited
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John F. M. Bell
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G01 - MEASURING TESTING
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Coal briquetting process
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Patent number 4,787,913
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Issue date Nov 29, 1988
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Coal Industry (Patents) Limited
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Joseph Goleczka
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Cyclone separator means
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Patent number 4,783,254
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Issue date Nov 8, 1988
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Coal Industry (Patents) Limited
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Chandulal L. Shah
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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Method of disposing of mining tailings
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Patent number 4,770,708
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Issue date Sep 13, 1988
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Coal Industry (Patents) Limited
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Anthony S. Atkins
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES