James L. Kern

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Nashua, NH, US

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Patents Grantslast 30 patents

Information Patent Grant
Nonbursting multiple-stage ferrofluid seal and system
- Patent number 4,407,518
- Issue date Oct 4, 1983
- Ferrofluidics Corporation
- Ronald Moskowitz
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...