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Inventor
WATSON MALCOLM R
GB
2 patents
Patents
2 patents
US6874499B2
Apr 5, 2005
Filter element that has a thermo-formed housing around filter material
3M INNOVATIVE PROPERTIES CO
54 citations
93
US7497217B2
Mar 3, 2009
Method of making a filter cartridge using a thermoforming step
3M INNOVATIVE PROPERTIES CO
4 citations
60