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[patent_doc_number] => 08758621
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[patent_title] => 'Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis'
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[patent_app_number] => 10/599350
[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 10/599350 | Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis | Mar 23, 2005 | Issued |