Maria Pauline Engel

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Emmastraat, NL

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic switching valve, and a free piston engine provided therewith
- Patent number 5,983,638
- Issue date Nov 16, 1999
- Innas Free Piston B.V.
- Peter Augustinus Johannes Achten
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS