filters, filter housings, filter holders, membranes, filter cartridges, filter discs and parts therefor all employed in the filtering of [ portable ] *potable* liquids and by electrokinetic capture and absorption and by mechanical sieving of contaminates from [ portable ] *potable* liquids being filtered all for use in laboratories

'absorpt':28 'captur':26 'cartridg':8 'contamin':34 'disc':10 'electrokinet':25 'employ':15 'filter':1,2,4,7,9,18,40 'holder':5 'hous':3 'laboratori':45 'liquid':22,38 'mechan':31 'membran':6 'part':12 'portabl':20,36 'potabl':21,37 'siev':32 'therefor':13 'use':43

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