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EP0372121A1
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Device for retaining an electrode holder
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EP0369064A1
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Electrode
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NL8802523A
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Welding prop.
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EP0324193A1
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Method and device for contact-free measuring the conductivity of a medium, using a capacitive coupling
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NL8700744A
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Method and apparatus for measuring the conductivity of a liquid, anti-influence of polarization
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NL8700688A
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Method and apparatus for measuring the conductivity of a liquid with control of the transition resistance between an electrode and the liquid.
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NL8700509A
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Method and apparatus for testing ion sensitive electrodes and system for monitoring an ion concentration
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EP0241601A1
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Device for testing the integrity of an electrode in a potentiometric measuring electrode system
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