Wilhelmus Franciscus Maria Keijzer

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Zutphen, NL

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Patents Grantslast 30 patents

Information Patent Grant
Flow-through connection member for an expansion tank
- Patent number 6,343,622
- Issue date Feb 5, 2002
- Flamco b.v.
- Wilhelmus Franciscus Maria Keijzer
- F24 - HEATING RANGES VENTILATING