PL252634A1 - Remotely controlled pipe network liquid pressure reduction system in particular for underground mine fire-fighting pipelines
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Remotely controlled pipe network liquid pressure reduction system in particular for underground mine fire-fighting pipelines
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Application filed by Kopalnia Wegla Kamiennego 1 MafiledCriticalKopalnia Wegla Kamiennego 1 Ma
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Publication of PL146682B1publicationCriticalpatent/PL146682B1/en