GAERTNER

MEASURING TELESCOPES, MICROMETER SLIDES AND ATTACHMENTS, MICROSCOPE SUPPORTS, SPHEROMETERS, TEST PLANES FOR USE WITH SPHEROMETERS, MICROMETER SCREWS, LEVELS AND LEVEL TESTERS, LABORATORY TELESCOPES, TELESCOPE SUPPORTS, MOUNTED READING TELESCOPES, ELEVATING STANDS, MEASURING SCALES, OPTICAL LEVERS, CATHETOMETERS, STANDARD METERS AND SCALES, SUPPORTS FOR STANDARD METER SCALES, COMPARATORS DIVIDING MACHINES, SPECTROMETERS, SPECTROSCOPES, WAVE-LENGTH SPECTROSCOPES, QUARTZ SPECTROGRAPHS, INTERFERENCE APPARATUS, POLARISCOPES, PHOTOMETERS, OPTICAL BENCHES, LIGHT SOURCES, HELIOSTATS