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Application filed by Marek Tkaczyk, Jaroslaw Tkaczyk, Wieslaw TkaczykfiledCriticalMarek Tkaczyk
Priority to PL34008600ApriorityCriticalpatent/PL340086A1/en
Publication of PL340086A1publicationCriticalpatent/PL340086A1/en
Opening system for setting half-open a hingedly-mounted rectangular member, in particular a combination hopper-and-swing window sash, door leaf or the like, window furniture for and method of mechanically and manually setting half-open a window sash, door leaf or the like