Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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B01D
SEPARATION
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39/00
Filtering material for liquid or gaseous fluids
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B01D39/14
Other self-supporting filtering material; ; Other filtering material
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B01D39/16
of organic material, e.g. synthetic fibres
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B01D39/1638
the material being particulate
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B01D39/1661
sintered or bonded
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