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PL281771A1
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Method of operating a dump yard for furnace wastes in conditions of varying ambient temperatures
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HUT53707A
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Method and apparatus for optimizing combustion process
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PL276321A1
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Method of and apparatus for continuously producing thick suspension of flying hard and brown coal ashes in water
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PL275981A1
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Bowl type ball mill
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PL275584A1
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A method for aggregate milling, especially in a coal ball mill
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PL274717A1
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Method of and arrangement of equipment for utilization of wastes stored on dumping grounds
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PL274163A1
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Direct current switching on and off system
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PL272932A2
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Device for straightening,cutting and cleaning profiled ducts
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PL272484A1
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Genodynamic oil burner
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CZ225988A3
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Apparatus for the control of energetic unit
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PL270303A1
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Method of influencing operating characteristic of a relay in particular of earth-leakaga one
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PL269856A1
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Method of securing a filter nozzle in the hole of draining bottom and filter nozzle therefor
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CA1266463A
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Means for making a dense mixture of furnace waste and water, particularly power fly-ash, slag and water
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PL269561A2
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Method for intensifying inter-ceiling space of a power boiler
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PL268824A1
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Method and device for surface treatment of holes in turbine disks
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PL258161A1
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Connection arrangement of an instrument for monitoring maximum power consumption during peak load hours
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PL255799A1
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Electronic arrangement of a starting value presetting device for an electrohydraulic francis turbine speed governor
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PL254467A1
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Sensing element for controlling flow of granular and powdered materials
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PL253934A1
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Method of protecting a generator against effects of turn-to-turn short circuits,in particular double earth faults in excitation windings
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PL253733A1
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Method of anticorrosion protection of radiant tubes of water heaters
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