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Patents Grants
last 30 patents
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Patent Grant
Bearings with hardened rolling elements and polymeric cages for use...
Patent number
6,558,139
Issue date
May 6, 2003
Chemical Seal & Packing, Inc.
Dan Nguyen
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Patents Applications
last 30 patents
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Patent Application
Bearings with hardened rolling filements and polymeric cages for us...
Publication number
20020094286
Publication date
Jul 18, 2002
Dan Nguyen
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...