Belcho Alexandrov Belchev

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Sofia, BG

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Patents Grantslast 30 patents

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Apparatus for continuous purification of liquids, dewatering and dr...
- Patent number 6,280,638
- Issue date Aug 28, 2001
- Belcho Alexandrov Belchev
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE