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Vish Minno-Geloshki Institute-Nis Darvenitza

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  • Darvenitza, BG
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    Apparatus for mineral processing
    • Patent number 4,109,874
    • Issue date Aug 29, 1978
    • Vish Minno-Geloshki Institute-Nis Darvenitza
    • Stoycho M. Stoev
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...

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