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Joseph Lem
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London, CA
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last 30 patents
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Patent Grant
Fluid treatment system and cleaning apparatus therefor
Patent number
6,863,078
Issue date
Mar 8, 2005
Trojan Technologies, Inc.
Vivian Dall'Armi
B08 - CLEANING
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Patent Grant
Optical radiation sensor system with cleaning device
Patent number
6,518,577
Issue date
Feb 11, 2003
Trojan Technologies Inc.
Gang Fang
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE