Optical glasses; Optical inspection apparatus; lenses for astrophotography; Lens caps for use with film, digital, and video cameras; optical lenses; Lenses for cameras; Laboratory equipment, namely, spectroscopes; stereoscopes; telescopes; Astronomical spectrographs; close-up lenses; Lens filters; Scientific and technical apparatus, namely, optical mirrors; microscopes

'apparatus':5,41 'astronom':30 'astrophotographi':8 'camera':18,23 'cap':10 'close':33 'close-up':32 'digit':15 'equip':25 'film':14 'filter':37 'glass':2 'inspect':4 'laboratori':24 'len':9,36 'lens':6,20,21,35 'microscop':45 'mirror':44 'name':26,42 'optic':1,3,19,43 'scientif':38 'spectrograph':31 'spectroscop':27 'stereoscop':28 'technic':40 'telescop':29 'use':12 'video':17

OPTOLONG

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