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GB1020370A
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Multi-purpose accessory for laboratory experimentation
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GB1018840A
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Improvements relating to ionisation gauges
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GB1006761A
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Improvements in or relating to ionisation manometer gauges
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GB1022147A
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Improvements relating to sliding vane rotary vacuum pumps
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GB1012246A
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Vacuum measuring cell for an ionisation gauge
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GB1029981A
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Conductor lead-in assemblies for electric discharge tubes
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GB1026612A
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Mass spectrometer tube arrangements
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GB1026750A
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Mass spectrometer tubes
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GB926814A
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Ion getter pump for high vacuum generation
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IE24641L
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Hot cathode ionisation manometer
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GB866844A
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Reducing the loss of working fluid from a high-vacuum vapour pump
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GB862892A
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A high-vacuum ion-getter pump
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