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Apparatus and method for measuring pressures and indicating leak

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Apparatus for and method of measuring composition and...

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Cold cathode device and vacuum gauge using same

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Cold cathode ion gauge

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Cold cathode ionization vacuum gauge with guard ring

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Cold-cathode ionization manometer having a longer service...

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Cold-cathode ionization vacuum meter with auxiliary ignition sys

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Device for measuring the internal pressure of an operationally b

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Discharge initiating means for cold cathode discharge ionization

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Electronic device for feeding ion pump

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Electronic portion of an ion gauge with ion collectors bowed...

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Hot cathode ionization pressure gauge

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Hot-cathode ionization pressure gauge including a sequence of el

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Hot-cathode ionization pressure gauge including a sequence of el

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Ionization gauge

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Ionization gauge

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Ionization gauge and method of using and calibrating same

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Ionization gauge and method of using and calibrating same

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Ionization gauge and method of using and calibrating same

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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Ionization gauge and method of using and calibrating same

Electricity: measuring and testing – Using ionization effects – For monitoring pressure
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