David J. Linberg

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Norristown, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Vehicle exhaust changeover apparatus
- Patent number 6,158,213
- Issue date Dec 12, 2000
- G. Douglas Linberg
- B08 - CLEANING
Information Patent Grant
Exhaust gas discharge apparatus
- Patent number 5,391,110
- Issue date Feb 21, 1995
- G. Douglas Linberg
- B08 - CLEANING