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PL333313A1
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Liminological model for measuring thermal properties of lentic water
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PL326794A1
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Method of obtaining methylbenzene naphtyridinones
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Method of and measuring stand for determining size and per-size distribution of particles present in polydispersive suspensions
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Method of biologically treating sewage
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PL299786A1
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Precipitate intensity measuring system
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PL297269A1
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Punch guide
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PL297232A1
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Method of obtaining substituted benzimidazonaphtydrines
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PL296217A1
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Method of obtaining novel chiral derivatives of 1-benzyl-2-ethyl aziridine
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PL296070A1
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Apparatus for continuously measuring total content of suspended solids or total mineralization of river waters
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PL291438A1
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Show-case with mechanical sorting of exhibits
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PL291347A1
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Method of obtaining n-alpha-benzoxycarbonyl-d-o-t-butyloseril-l-leuci-l-argynil-l-proline n-ethylamide acetate
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PL290897A1
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Method of machining slender workpieces of circular cross-section, in particular rolling mandrels and apparatus therefor
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PL290109A1
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Plastering and smoothening float
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PL290017A1
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Plastering guide
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PL290018A1
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Rotary floating biofilter
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PL289734A1
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Barrier for stopping propagation of and collecting oil spillages
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PL289735A1
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Water aerator
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PL289274A1
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Method of obtaining 6-decyl-1,6- and 6-decyl-4,6-benzo-/h/-naphtyridin chlorides
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PL163183B1
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System of shelved racks for storage of compact printed matter, files and tools
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PL286182A1
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Method of making and regenerating rolling mandrels and apparatus therefor
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