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provhttp://www.w3.org/ns/prov#
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n4freepatentsonline.
Subject Item
isap:516198916
prov:wasDerivedFrom
isa:120235725
Subject Item
isa:120235725
rdf:type
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prov:value
A suitable pore size of the microporous membrane is smaller than the retainable particle size of glass fiber filter, and is 0.2 ??m or more, preferably about 0.3 to 5 ??m, more preferably about 0.5 to 4.5 ??m, particularly preferably about 1 to 3 ??m.
prov:wasQuotedFrom
n4:com