B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/109, 92/11.2
B01D 39/18 (2006.01) B01D 39/14 (2006.01)
Patent
CA 1073372
ABSTRACT OF THE DISCLOSURE A filter medium having a water-laid web of fibers, at least 70% of which are cellulose, impregnated with resin in a pattern at its wire side to a depth of 15 to 45% of its total thickness, the pattern having zones free from resin amounting to 35 to 60% of the total area of the wire side, each zone having at least one dimension no greater than 4 mm.
279554
Lawson Grover C.
Wilson James C.
LandOfFree
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