Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
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49/00
Particle spectrometers or separator tubes
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H01J49/26
Mass spectrometers or separator tubes
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H01J49/42
Stability-of-path spectrometers, e.g. monopole, quadrupole, multipole, farvitrons
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H01J49/422
Two-dimensional RF ion traps
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H01J49/423
with radial ejection
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