Aart Z. van Halteren

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Zwaag, NL

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Patents Grantslast 30 patents

Information Patent Grant
Electret transducer and a method for manufacturing an assembly of b...
- Patent number 4,567,382
- Issue date Jan 28, 1986
- Microtel B.V.
- Aart Z. van Halteren
- H04 - ELECTRIC COMMUNICATION TECHNIQUE