GB843581A
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Machine for driving mine galleries
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DE1056077B
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Shaft lining from segment rings
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DE1081285B
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Rope pulley, especially for shaft conveyance
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GB801615A
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Rotary drilling apparatus for the production of shafts
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DE1054790B
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Rope pulley, especially for shaft conveyance
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DE1153396B
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Process for operating foundry shaft ovens
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DE1010475B
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Rotating device for making pods
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GB775734A
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Improvements in or relating to apparatus for producing highly dispersed mists and fumes
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GB752740A
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Apparatus for combatting dust at working points, more especially at the face in underground mining
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DE1017993B
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Device for generating highly dispersed mists and smoke
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DE1019627B
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Portable device for the generation and distribution of aerosols
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GB732518A
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Formed coke for foundry shaft furnaces and process for its manufacture
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DE1078084B
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Form coke for foundry shaft ovens and process for its manufacture
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DE923663C
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Device for supplying compressed air
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DE922460C
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Shaped bodies made of carbon and ceramic materials and process for their production
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DE928397C
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Process for the production of carbon moldings
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DE928151C
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Process for the production of molded hard coal bodies
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