Martin A. Vermeulen

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Utrecht, NL

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Patents Grantslast 30 patents

Information Patent Grant
Oil level regulator
- Patent number 5,056,622
- Issue date Oct 15, 1991
- Groeneveld Transport Efficiency B.V.
- Martin A. Vermeulen
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES