Filter element
SMITH, PETER ROY, SMITH-HADDON, WILLIAM FREDERICK, CROSS, EDWARD HENRY
Year of Publication 04.09.2002
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Year of Publication 04.09.2002
Patent
Filter array with connector for successive backwash
CAMPBELL ROBERT FRANCIS, CROSS THOMAS DAMIAN, SMITH-HADDON WILLIAM FREDERICK
Year of Publication 06.03.2001
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Year of Publication 06.03.2001
Patent