|
GB618811A
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Electron discharge vessel
|
|
GB433690A
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Improvements relating to apparatus for the treatment of the human or animal body
|
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Apparatus for producing extremely fast corpuscular rays
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GB418305A
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A device for use in radiating parts of the human body with cathode rays
|
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Vacuum circuit breaker
|
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Impulse generator
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Improvements relating to apparatus for producing electrical impulses of very high voltage
|
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GB376761A
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Improvements in or relating to electric vacuum tubes
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GB365609A
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Improvements in or relating to electric vacuum tubes
|
