9 Photosensors, namely, light sensors, and replacement parts and structural parts therefor; Detectors, namely, detector machines for use in detecting ion, x-rays, ultraviolet rays, electron radiation, and other atomic and subatomic particles, and replacement parts and structural parts therefor; Detection elements, namely, ion detection elements in the nature of ion detectors consisting of electron multipliers and avalanche photodiodes for use in detecting ion, x-rays, ultraviolet rays, electron radiation, and other atomic and subatomic particles, and replacement parts and structural parts therefor; Mass spectrometers, and replacement parts and structural parts therefor; Measurement devices, namely, measurement machines for use in measuring ion, x-rays, ultraviolet rays, electron radiation, and other atomic and subatomic particles, and replacement parts and structural parts therefor; Photomultiplier tubes, and replacement parts and structural parts therefor; Electron multipliers, and replacement parts and structural parts therefor
Trademark: 97042235
