B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 35/143 (2006.01) B01D 29/60 (2006.01) B01D 35/30 (2006.01) C02F 1/00 (2006.01)
Patent
CA 2390416
This invention relates to a color coded counter mechanism for a fluid treatment filter device which indicates to the consumer when to replace the filter. It also includes a selective means in the counter mechanism for permitting the filter device to be used in countries having different standards of filtration without requiring a new counter mechanism for each country.
Kirchenstiner Michael
Tsataros Eddie J.
Dart Industries Inc.
Gowling Lafleur Henderson Llp
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