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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H01J49/16
using surface ionisation, e.g. field-, thermionic- or photo-emission
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H01J49/161
using photoionisation, e.g. by laser
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H01J49/164
Laser desorption/ionisation, e.g. matrix-assisted laser desorption/ionisation [MALDI]
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