Dale W. Koop

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Hastings, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Piston and oil control ring therefor
- Patent number 4,585,237
- Issue date Apr 29, 1986
- Hastings Manufacturing Company
- Dale W. Koop
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...