Hermanus Pieterse

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Vaal Reefs, ZA

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Patents Grantslast 30 patents

Information Patent Grant
Letdown valves
- Patent number 4,892,289
- Issue date Jan 9, 1990
- Crucible Societe Anonyme
- Barney Van Dyk Burckard
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...