B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/74
B01D 27/02 (2006.01) B01D 27/12 (1980.01)
Patent
CA 1176181
ABSTRACT OF THE DISCLOSURE A method of filtration comprises passing an in fluent through a cylindrical filter bed of annular cross-section in the direction of the thickness of the filter bed; and subsequently passing a backwash through the filter bed axially thereof.
378862
As Represented By The Ministe R. Of National Defence Her Majesty The Queen In Right Of Canada
Stewart & Kolash Ltd
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