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PL278752A2
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Grinding wheel
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PL277880A2
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Method of preparing and storing roasted coffee beans
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PL273462A4
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Method for cleaning internal surfaces of containers,especially tanks for transport of fatty materials,from impurities and organic residues
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PL273398A2
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Method of replacing defective central heating radiators without interruption of operation of a central heating system incorporating such radiator
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PL273423A2
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Method for cleaning internal surfaces of containers,especially cisterns for transportation of fatty products,from impurities and organic residues
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PL272607A1
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Method for measuring analog signals using a microcomputer
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EP0240850A1
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An internal-combustion turbine engine, particularly for driving vehicles
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PL257789A3
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System for checkin self-control digit in a wagon number
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PL257788A1
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Method of and system for recognizing telegraphically transmitted characters
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PL257480A1
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Method of processing wood wastes,wood-derivative materials and straw
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PL255006A2
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Power factor measuring system and method
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PL254320A2
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Method and system for converting a transformer tap number into analog signals
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PL251329A2
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Method of cleaning metal shets and/or plates in particular ship plates being covered with scale
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PL250438A1
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Apparatus for validation of check digit and format of rolling stock car number
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PL242199A2
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Method of and apparatus for grain aeration
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PL242139A1
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Electric soldering iron
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PL240839A1
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Method of and apparatus for incineration hospital wastes and refuses
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PL238854A1
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Supply transformer
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PL238783A1
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Light bulb seal
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PL235472A2
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Method of analog to digital signal conversion
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