Johannes Meyknecht

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Osnabruck, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of and apparatus for testing the tightnesses of two valves a...
- Patent number 4,825,198
- Issue date Apr 25, 1989
- G. Kromschroder Aktiengesellschaft
- Jurgen Rolker
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...