Donald R. Hayes

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Universal joint for multiple flowline system
- Patent number 4,311,327
- Issue date Jan 19, 1982
- Exxon Production Research Company
- John E. Ortloff
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...