Donald A. Koengeter

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Chelsea, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Reserve fuel valve and method for making
- Patent number 5,906,224
- Issue date May 25, 1999
- Dapco Industries
- Willis E. Tupper
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Combination primer and mixture enrichment device
- Patent number 5,071,325
- Issue date Dec 10, 1991
- Willis E. Tupper
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS