Kenneth Sundberg

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Cranston, RI, US

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Patents Grantslast 30 patents

Information Patent Grant
Automatic vent having a multi-hinged valve
- Patent number 5,988,201
- Issue date Nov 23, 1999
- Sparco, Inc.
- Benno Lebkuchner
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...